Funny Birthday Wishes for an 18 Year Old
18th Birthday Wishes & Quotes
18th birthday wishes can be funny or serious — or both. But they should never be unoriginal. Most 18-year-old boys and girls have seen and heard it all (or think they have).
The best 18th birthday messages tap into the mindset of your average 18 year old. Need ideas? Get inspired by the original 18th birthday messages on this page.
BY KEVIN NISHMAS | UPDATED: FEB. 7, 2021
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Start your search here. For inspiration, check out all the 18th birthday messages on this page. Simply jump to the birthday greeting section you need right below.
QUICK LINKS
- 18TH BIRTHDAY WISHES - SHORT
- 18TH BIRTHDAY WISHES - SON
- 18TH BIRTHDAY WISHES - DAUGHTER
- 18TH BIRTHDAY WISHES - FRIEND
- 18TH BIRTHDAY WISHES - SISTER
- 18TH BIRTHDAY WISHES - BROTHER
- 18TH BIRTHDAY WISHES - QUOTES
- HINTS & TIPS
18th Birthday Wishes
- Short -
| Happy 18th birthday! Welcome to the world of adults. Enjoy your stay. | Happy 18th birthday! You're all grown up now. So proud of you. | Happy 18th birthday! Dream amazing dreams today and forever. |
| Happy 18th birthday! You shine without even trying. | May your 18th birthday be as awesome as you are. | Happy 18th birthday! Someone as amazing as you deserves the perfect day. |
| Celebrating you and your 18th birthday is where I want to be. | A wonderful person like you deserves a 18th birthday full of wonder. | Happy 18th birthday! You've grown into truly unique individual. Wow. |
| Happy 18th birthday! Always seek love, adventure and joy. | Happy 18th birthday! The year ahead will be amazing for you, starting now. | Happy 18th birthday! Celebrate the person you've become. I do. Every day. |
| Happy 18th birthday! This makes you a full-fledged adult. You turned out great. | Happy 18th birthday! Anybody who has you as a friend is one lucky person. | Hoping your 18th birthday is crazy fun and crazy good, just like you. |
| Happy 18th birthday! You're always there for the ones you love. You're amazing. | Happy 18th birthday! You're an adult now? No way. You're still a crazy kid. | Happy 18th birthday! Watching you grow up has been my favorite pastime. |
| Happy 18th birthday! Today's the start of countless incredible adventures. | Happy 18th birthday! Hope this amazing milestone inspires you to be amazing. | Happy 18th birthday! This is the beginning of a truly wonderful journey. Enjoy. |
18th Birthday Wishes
- Son -
| Happy 18th birthday! You are a 100% original! One in a trillion. You are pioneer! We're so proud that you'll always be able to find your way, your way. | Happy 18th birthday! Son, you've just passed through the gateway to Adultville. The adventure of your life is about to begin. Enjoy the journey! | Happy 18th birthday! Son, you're now a grownup. You're ready to pursue all the dreams you've ever dared to dream. It's our greatest joy to see you find you wings. Aim and fly high. |
| Happy 18th birthday! Son, turning 18 comes with certain adult privileges freedom. But it also comes with certain responsibilities. I know you have it in yourself to strike the perfect balance between the two, giving and receiving the best life has offer. | Happy 18th birthday! At 18, you're 100% in charge of your destiny, so don't forget to be kind to yourself and everyone you meet in life. That's the secret to happiness. | Happy 18th birthday! This should be one of the best times in your life, so full of promise, adventure, challenges, opportunity, intrigue and excitement. Enjoy every precious moment. |
| Happy 18th birthday! Ever since the day you were born, you've been an agent of love, kindness and joy. You make me very proud. May you always live a life of your own beautiful design. | Happy 18th birthday! Remember that there's power in your decisions. Decide to do great things. Decide to be kind, loving and strong. We want you to have a blessed life. | Happy 18th birthday! Although it's only natural to wonder and worry about your future. Don't. Just trust your gut. You know yourself best. You'll know the road to take every step of the way. |
| Turning 18 is a life-changing experience. Take it slowly and enjoy every second! Happy birthday. | Happy 18th birthday. You're no longer a kid. You're a grownup. Make us proud! | Now that you're 18, you're responsible for yourself and the world around you. Be your best. Happy birthday! |
| A wonderful, challenging, intriguing time of your life begins at 18. I only have one piece of advice for you: be yourself because you have so much to offer the world of adults. Happy 18th birthday! | The word "teen" may be attached to the end of your age but that doesn't mean you're still a teenager. At 18, you're a grownup. It's time to take on grownup things. Besides, you're more than ready. Happy birthday! | Welcome to adulthood. Now go make your bed and pick your clothes off the floor. Happy 18th birthday! |
| Stay young and optimistic your whole life. Wealth and wisdom are nice but youth and hope are your best friends! Happy 18th birthday! | Happy 18th anniversary of your birth. It's not the silver or golden anniversary. It's the start-to-act-like-a- grownup-or-else anniversary…starting now! | May you easily climb the ladder of success. We will support you every rung of the way. Happy 18th birthday! |
| Happy 18th birthday! Wishing you the best in life. That's why it's my duty to tell you that you won't get it...unless you wake up before noon. | Happy 18th birthday!You've always made us proud. I can't wait to see what you'll do next. We love you. | Happy 18th birthday! May every wish and dream you have today give you the passion and courage to make them come true tomorrow. We know you can do anything you set your mind to. |
18th Birthday Wishes
- Daughter -
| Happy 18th birthday. A life full of wonder, joy and love awaits you. Even prosperity. Everything is in your incredible, beautiful hands. You have a bright future. | Happy 18th birthday. You are more than the world's most amazing daughter. You are the world's most amazing woman. We should know. We've watched you become the wonderful you. | Happy 18th birthday. Sweetie, may every dream you dare to dream come true and come through every moment of your life. |
| Happy 18th birthday. May every second make you smile. This is a big day, one of the biggest in your life. Let our love rain down on you. | Happy 18th birthday. Whether you're 18 or 81, you'll always be my little girl. My incredibly special little girl. | Happy 18th birthday. Yes, 18 years ago, you changed our lives in a split second. And you've been changing it for the better ever since. Thank you. We love you. |
| Happy 18th birthday. You've reached one of those major milestones in your life that changes everything. For you. For me. For everyone you know. Don't let it change what makes you happy. | Happy 18th birthday. The most wonderful time of your life starts today. Take the time to savor every second of it. You deserve every precious moment. | Happy 18th birthday. Starting today, the day you become an adult, may your life take you on a magical mystery journey that lifts your soul, brings you peace and fills you with love! |
| Today, you turned 18 and turned into an adult. You future looks so bright. That's because you're a source of light wherever you go. Happy birthday! | Since the day you were born, you've brought us only joy and wonder. We cannot wait to see all the amazing things you'll do with the rest of your life. Happy 18th birthday. | Happy birthday! At 18, it's the perfect time to dream big, take giant leaps and reach for the stars. |
| Welcome to womanhood. Yes, I know I said the same thing when you turned 12. This time I mean it. Happy 18th birthday! | At 18, you may think that money can buy you anything, but it can't. What it can buy is not worth a dime. The best things in life can't be bought or sold. They can only be given.Happy birthday. | As your parent, I have the legal obligation (and the incredible pleasure) of officially recognizing you as a grownup. Sweetie, I hereby certify you as "old" and sentence you to years of "you look good for your age." Happy 18th birthday! |
| An amazing life is coming your way. You're on the path to immense joy, adventure and prosperity. Have a happy 18th birthday! | You've been waiting 18 years to be legal. Happy 18th birthday and welcome to adulthood. It's your time to fly! | At 18, you officially become a woman and embark on a journey we older women call "life" — otherwise known as the get-married, get-older, get-fatter, get-wrinkled, get-divorced and get-facelift ride. |
| At 18, you can start making every dream you have come true. Hoping you have the strength and courage (because you already have lots of love from us) to take this decisive step toward true happiness. Happy 18th birthday! | Sweetheart, try to live simply, creatively, gratefully, respectfully and, most import of all, happily. May this path be your future. Happy 18th birthday! | Happy 18th birthday. Start planning ahead today, so you'll be prepared to savor every amazing thing life has to offer, all your tomorrows. |
18th Birthday Wishes
- Friend -
| Happy 18th birthday!Welcome to the world of adults. It's a crazy world, full of sinners and saints. You'll fit right in. | At 18, when it's okay to think more about yourself, you think only of others. You are already an old soul. You're definitely ready to be an adult. Happy birthday! | Happy 18th birthday! You're an adult now. Now you can do everything legally you've been illegally doing since you were a kid. |
| Happy 18th birthday. Today, you've become a full-fledged adult, but don't let this fact go to your head. Your parents still make your bed! | Happy 18th birthday. Don't start to take yourself too seriously. Nobody else is about to. | Now that you're 18 years old, you're both a teenager and an adult — old enough to move out on your own, yet still young enough to get your parents to do your laundry. Happy birthday! |
| Happy 18th birthday! Welcome to the world of adults! Bottoms up! | Happy 18th birthday! Today, my advice for you is simple: live each day of your life like it's your birthday. Celebrate what makes you, you. | Happy 18th birthday. Life is a beautiful dance. Keep dancing to your own beat. |
| Happy birthday. At 18, your life has only just begun. May yours be a long journey into the light. | Happy 18th birthday! Don't worry about acting like an adult just yet. Today, we party like rock stars. Tomorrow, like mature adults, we will pretend it never happened! | You're already a star at 18. The world is yours to enjoy, protect and brighten. Happy 18th birthday. |
| Is your 18th birthday everything you imagined? No? Don't worry, things only get worse...until you hit 30, when you want to be 18 again! Happy birthday! | Happy 18th! You finally know what it feels like to be "legal." It's just like before, except you can now buy beer with an ID that actually has your photo on it. | Happy 18th birthday! Now you only have one rule to follow: Don't piss off the bouncer or bartender at your favorite bar. |
| Happy 18th birthday! May you live life like it's birthday every day. | Happy 18th birthday! As your birthdays come and go, may you always remember that growing older doesn't mean growing up. Stay young (it's good for the heart). | Happy 18th birthday! Your adolescence is officially over. No more teenage angst and pimples. The best is yet to come, along with adult angst and pimples. |
| I hope your 18th birthday is so much fun that it becomes an official holiday. Happy 18th birthday! | Your 18th birthday is a special occasion. It's when you get to celebrate your leap into adulthood. You know what that means, right? Let's party until we puke! Happy 18th birthday! | At 18, you may not feel like an adult but you have to start acting like one. Not because you should grow up — no, no. Because your parents now have the legal right to throw you out of the house. |
| Happy 18th birthday! I have one piece of advice for you. Whenever somebody gives you life advice, don't just ignore it. Think about it, then ignore it. | You're only 18 once, so let's make your birthday epic. Heck, let's make your birthday the first of countless special days this year. Any excuse for a party, right? Happy 18th birthday! | May every single day of yours be a celebration like today. Happy 18th birthday! |
| Turning 18 is the best reason to have a party. But not too much...because you're old enough to get thrown into jail. Happy (sort of) 18th birthday! | Wishing you all the luck and prosperity you can handle, plus all the health and happiness you'll need in the future. Happy 18th birthday! | Happy 18th birthday!Let's act like we're 18 for the rest of our lives, starting today. |
18th Birthday Wishes
- Sister -
| Happy 18th birthday. Bravo, sis. You're now an adult, and an amazing one at that. As my sister, you are definitely a blessing in disguise. | It's an honor and privilege to celebrate your birthday. You are special. Your rare mix of kindness, passion, positivity and strength have always set a great example for me. Happy 18th birthday, sis! | Happy 18th birthday, sis. Countless new adventures, both great and small, await you. Of course, I will be there for you every inch of the way. |
| Happy 18th birthday to the coolest sister in the world. It's a true blessing that you came along. You're my favorite person. | You only turn 18 once, so put on your dancing shoes and and dance away this very, very, very special day. Happy 18th birthday! | Happy 18th birthday. Try to make the most of your milestone 18th birthday celebration, because it's all downhill from here. |
| Happy 18th birthday. Being a grownup isn't as great as it looks but, for you, it will be...because you're great, sis. | Happy 18th birthday. Welcome to adulthood, sis. There's no turning back now! You're here to stay! Enjoy the journey. | Happy 18th birthday, my lovely sister! The future is now fully in your hands...your very inspiring, caring and capable hands. You'll be just wonderful. |
| Happy 18th birthday. Nobody instantly becomes a cool adult at 18. Sis, you are not a nobody. You're somebody who's been cool since Day 1. | Happy 18th birthday to the weirdest, smartest, kindest and, most of all, greatest sister in the world! May today be as extraordinary as you are! | Happy 18th birthday, sis! You're not my favorite sister. You're just my favorite. Enjoy everything life has to offer. |
18th Birthday Wishes
- Brother -
| Happy 18th birthday. You've just entered the Land of Adults. May you find the key to everything you seek in life. | Happy 18th birthday. Your mission, if you choose to accept it, is to be the best man you can be. I firmly believe that you'll be your best in no time at all. | Happy 18th birthday. Your journey into adulthood begins today. Let's travel together, so we arrive at every destination at our best, ready for whatever the road throws at us. |
| Happy 18th birthday to the greatest brother ever. May you forever be ready for anything, just like you are today. | Happy 18th birthday. You're now officially a grownup. At last, you can really take a bite out of life. Enjoy every slice. | Happy 18th birthday. Entering adulthood does have its amazing privileges. It also comes with responsibility. May you always find the right balance between them. |
| Happy 18th birthday. Now that you're officially an adult, we could be more than just brothers and best friends. We can now be drinking buddies. | Happy 18th birthday. Hoping all your dreams come true with flying colors. You deserve a colorful life. | Happy 18th birthday. This is the first day of the rest of your life as a grownup. The most exciting adventure of your lifetime starts now. |
| Happy 18th birthday. Today, you're officially a man. You should be very proud of the man you've become. | Happy 18th birthday. Celebrate this big day in a BIG WAY. It's not every day you enter the world of adults. Let's drink to it (now that you can legally paint the town red)! | Happy 18th birthday. It's my duty as your older [brother, sister] to officially welcome you to Adultville and, most of all, make sure you don't miss out of all the fun that comes with this wonderful destination. |
18th Birthday Wishes
- Quotes -
Still wondering what to write? Below are 18th birthday quotes that may inspire you to write the best-ever 18th birthday wishes.
Feel free to use the birthday quotes here "as is" or change them to your liking to come up with 18th birthday wishes that the birthday girl or boy will just love.
| "Not caring about what others think of you is the ultimate form of freedom. No amount of money or status can get you that freedom. It costs $0 and lots of courage." - Preethi Kasireddy | "Promote what you love instead of bashing what you hate." - Ed Latimore | "Ask yourself what makes you come alive, and go do that, because what the world needs is people who have come alive." - Howard Thurman |
| "When people try to tell you who you are, don't believe them." - Maria Popova | "It takes courage to grow up and become who you really are." - E. E. Cummings | "Judge nothing, you will be happy. Forgive everything, you will be happier. Love everything, you will be happiest." - Sri Chinmoy |
| "Everyone you admire was once a beginner." - Jack Butcher | "A person can achieve everything by being simple and humble." - The Vedas | "It's easy to stand in the crowd but it takes courage to stand alone." - Mahatma Gandhi |
| "The more something scares you, the more you should do it." - Mark Manson | "Life is a balance of holding on and letting go." - Rumi | "Everything will be ok in the end. If it's not ok, it's not the end." - John Lennon |
| "Every day, you have the power to choose our better history, by opening your hearts and minds, by speaking up for what you know is right." - Michelle Obama | "The difference between winning and losing is most often not quitting." - Walt Disney | "If I cannot do great things. I can do small things in a great way." - Martin Luther King, Jr. |
| "There is nothing quite so tragic as a young cynic, because it means the person has gone from knowing nothing to believing nothing." - Maya Angelou | "If you're making mistakes, it means you're out there doing something." - Neil Gaiman | "Beautiful people are not always good, but good people are always beautiful." - Imam Ali |
| "Look up at the stars, not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious." - Stephen Hawking | "You're never going to be happy being anyone other than yourself." - Thibault | "Don't listen to the person who has the answers. Listen to the person who has the questions." - Albert Einstein |
| "Always be a first-rate version of yourself, instead of a second-rate version of someone else." - Judy Garland | "You have to be authentic, you have to be true, and you have to believe in your heart." - Howard Schultz | "The person seeking to learn wins what the person seeking to impress loses." - Angela Jiang |
| "You can't stop people from saying bad things about you. All you can do is make them liars." - Thomas Sowell | "You'll stop caring what people think about you when you realize how seldom they do." - David Foster Wallace | "Do things for joy or for learning, not for attention." - Author Unknown |
Hints & Tips
What are the best 18th birthday wishes?
When people turn 18 (in many countries, such as Canada), they legally become adults with grown-up privileges, like the right to buy tobacco, drink alcohol, vote and drive.
So, should you just stick to drinking and other age-related jokes in your 18th birthday wishes? Yes and no. Here's why...
- YES, someone's 18th birthday is an opportunity to be funny or serious about age-related milestones, like drinking alcohol, bar hopping or partying in general.
- NO, you shouldn't go this route if the birthday boy or girl isn't exactly the "drinking type" and is not about to become a drinker when the clock strikes 12:01 a.m. on their 18th birthday.
In other words, if the birthday boy or girl can take a joke, poke fun at their drinking with your 18th birthday wishes. If they're the serious type (they look and sound like adults), gently inspire them to be their best in the coming years.
There's also the happy medium: 18th birthday wishes that aren't totally funny or completely serious. They could be sentimental, inspirational, cute, even clever, or a combo of every style.
Keep in mind, though, many 18-year-old boys and girls are consumed with social media and everything else online, so you need to send them original 18th birthday greetings that can penetrate this cyberspace-jaded crowd. You need to be "real" (not contrived or patronizing) with your 18th birthday wishes.
The 18th birthday messages on this page are 100% original and 100% real. Guaranteed! See for yourself.
Can't decide? Don't know where to begin? Maybe, all you have to do is write 18th birthday wishes that feel right to you, based on the personality and/or temperament of the loved one celebrating a birthday, and reflects what you want to say to him or her.
Need ideas? Get started with the 18th birthday wishes on this page. Once you've found a birthday message you like "as is" or want to change. you'll have the perfect 18th birthday message instantly.
Need inspiring tips for your 18th birthday wishes?
I love "What I would tell my younger self" type of articles, so when I found the article "18 Things I Wish Someone Told Me When I Was 18" by Marc Chernoff and Shaun Boyd, two bloggers, I knew I had to share it with you. Why? Because it offers some inspiring thoughts that can easily complement the 18th birthday wishes on this page.
Here are the 18 tips you may want to add to my 18th birthday messages:
- "Commit yourself to making lots of mistakes.
- Find hard work you love doing
- Invest time, energy and money in yourself every day
- Explore new ideas and opportunities often
- When sharpening your career skills, focus more on less
- People are not mind readers. Tell them what you're thinking
- Make swift decisions and take immediate action.
- Accept and embrace change.
- Don't worry too much about what other people think about you.
- Always be honest with yourself and others.
- Talk to lots of people in college and early on in your career.
- Sit alone in silence for at least 10 minutes every day.
- Ask lots of questions.
- Exploit the resources you do have access to.
- Live below your means.
- Be respectful of others and make them feel good.
- Excel at what you do.
- Be who you were born to be."
If you want to check out the full article, click here to read it.
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