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Updated: 7th April, 2024
Turning 21 is a big deal. It's like stepping into a world that claims you're now a full-fledged adult, ready to take on life's challenges with a glass of legal drink in one hand. But let's be honest, while the newfound freedom and responsibilities are exciting, they also come with their own set of "I wish someone told me that" moments. That's where the perfect funny birthday card comes in, one that tickles the funny bone just right with a hilarious greeting.
Funny 21st Birthday Quotes & Wishes
Here is a list of funny 21st birthday quotes & wishes to lighten up the big day and bring a smile to the birthday person's face. Whether for a friend, family member, or colleague, these witty messages are sure to make their next 21st birthday card unforgettable.
Welcome to the world of adulthood! (Returns not accepted.)
Happy 21st Birthday! Time to make some pour decisions.
Congrats on 21! Legal to do everything you've been doing since 18.
21 years of awesomeness +1. Keep up the good work!
21 and legally able to do everything I've heard you've already done.
Being 21 means you always have the moral high ground. Use it wisely, or just for fun.
Welcome to adulthood! Spoiler alert: You still won't feel like an adult.
Remember, age gets better with wine.
The secret to staying young is to live honestly, eat slowly, and lie about your age.
21: When 'No ID, no entry' turns into 'Show ID for respect'.
21 looks good on you, but then again, so would a lot of things I can't say in a card.
Happy 21st! FYI, beer doesn't count as a daily serving of grains.
Time to retire those fake IDs for good... or until you need a senior discount.
Congrats on unlocking the achievement '21 and Irresponsible.'
Being 21 means you’re now the perfect age to date someone half your age plus seven. Good luck figuring that one out.
Happy 21st Birthday! Enjoy the age where you can rock body glitter and it’s socially acceptable.
Girl, it’s your 21st! Time to start using anti-wrinkle creams…and drinking legally.
Legend has it that on your 21st birthday, you turn into a unicorn. Let's see it!
Welcome to the 21 Club: Like the Mile High Club, but with fewer restrictions and more cake.
Now you can legally do all the things you've been secretly good at since you were 16.
Here’s to 21 years of you annoying the crap out of everyone. And to many more!
Happy 21st Birthday! You're now officially old enough to pay for your own mistakes.
Congratulations on finally aging out of your parent’s health insurance. Welcome to real adulthood.
Being 21 means you can now sigh loudly about young people's choices with authority.
21: When 'I'm not like other girls/guys' changes to 'I'll have the usual.'
Roses are red, violets are fine. You’re finally 21, let's pop open some wine!
Violets are blue, roses are thorny. Be glad you’re not 40!
Now that you’re 21, it’s time to be mature. Too bad your first legal drink will ensure the opposite, for sure.
21 years old, wisdom to gain. Too bad the first legal drink might kill half your brain.
Cheers to you on your big day, 21 years young, hip hip hooray! Just remember in the morning, it may not feel that way.
Not cheeky enough? Check out list of rude Birthday wishes.
Figuring out the right mix of humor and well-wishes for a 21st birthday card can be a bit like mixing the perfect drink— it takes a bit of creativity and a lot of heart. Whether they laugh out loud or groan at the sheer cheekiness of your message, they’ll appreciate the gesture deeply.
This special day comes once in a lifetime, and it’s the perfect opportunity to remind your loved one to embrace all the fun, mistakes, and memories that come with this landmark age.
Make sure to check out our range of humorous birthday cards at Happy Tree Cards to find the perfect vessel for your funny message.
More 21st Birthday Wishes
What to Write in a 21st Birthday Card
Discover the perfect blend of heartwarming and witty messages to write in a 21st birthday card that will be remembered for years to come.
Top 30 Funny Birthday Wishes
Laugh out loud with our list of funny birthday wishes that will make any birthday a happy hoot! Bring a smile to their face.
What to Write in a Birthday Card
Find the right words for a birthday card. Check out our list of group greeting card message ideas for some inspiration!
