40 Funny and Sincere Happy 18th Birthday Messages

40 Funny and Sincere Happy 18th Birthday Messages. 

The 18th birthday is very significant, as you turn into an adult. You can vote, get a loan or a credit card, drink alcohol (in some countries), and join the military if you choose to. However, along with being recognized as an adult legally, it’s also time to mature and start being more responsible with your life. So, if you know anyone turning 18, it would be nice to send them some wishes to mark this significant birthday. Below are some samples to choose from. 

Happy 18th Birthday Messages

• Now that you’re 18, you’re responsible for covering for your own mistakes. Unfortunately, those don’t stop at any age. 

• You’re an adult now, but don’t let it go to your head. Seriously, the younger you think, the younger you’ll stay. 

• Don’t worry, you still don’t have to take yourself seriously. We certainly won’t. Happy 18th! 

• Now that you’re 18, you’re both an adult and a teenager! Lucky you 🙂 Happy birthday! 

• You’re not a kid anymore. Happy birthday and welcome to manhood! 

• Even though you’ve turned 18 and are technically an adult, don’t be fooled. You are still a kid and will be for the next 18 years! 

• The little girl I knew so well is now a woman! Happy 18th birthday, dear! 

• You’re no longer a kid so it’s time to start watching where you step. Welcome to the always-fun grown-up world! 

• Your sweet childhood is no more. It’s time to lament the end of your innocence. Still, Happy 18th! 

• Finally, after waiting 18 years, you’ve earned the right to buy more stuff! Welcome to adulthood! 

• Welcome to adulthood! I wish you a great 18th birthday and hope each and every dream comes true. 

• Personally, I couldn’t care less if you were 18 or 80. It all means the same thing to me: time to party! 

• We all know for a fact that you are still just an 8-year-old with ten years of experience. I hope you have a great birthday! 

• Um. I think you’re awesome. Happy birthday! 

• You’re never old enough to keep secrets from me, even if they might have more consequences than before. Don’t forget that! Happy birthday, dearest. 

• Just like your nose and ears, my love for you will only grow with the years. Happy birthday! 

• Keep this up and soon you’re going to be 100 years old. Happy birthday! 

• On your 18th birthday, my number one piece of advice is for you to take a deep breath, do some reflecting, and make a cool start. 

• Turning 18 is a great life experience. Don’t miss the excitement! 

• Today my heart and soul will only sing one song for you: “Happy Birthday!” 

• Congratulations on this special day. The coming years of your life are sure to be exciting! 

• Enjoy the moment, the day, and your teenage years for as long as possible. Wishing you a memorable 18th birthday! 

• May your future be forever bright. To us, you will always be a source of light. Happy 18th birthday! 

• Throw an awesome party and have some fun! Happy 18th birthday. 

• You might think you’re old because you’ve turned 18, and that’s only because you still don’t know anything. 

• Life is a journey, and you’ve only just begun. Happy 18th! 

• You’ve already brought us so much joy. I can’t wait to see what you do with your next 18 years. 

• Life is what you make of it! Happy 18th! 

• No matter what the future brings, I’ll always be there for you. You’re never too old to need a helping hand (sometimes two). Happy 18th birthday. 

• My advice to you on your 18th birthday is: don’t be afraid to make mistakes, to fall in love, or to ask for help. Also, save money (less fun but also very important). Happy birthday! 

• You are a star and I know you’re going to do wonderful things. Happy birthday. 

• I am so happy to have you in my life. The best is yet to come. Happy birthday. 

• Put away your worries for the day. Adulthood can start tomorrow, but today we need to celebrate! 

• You did it! You held on for another trip around the sun. I hope we have many more together. 

• Now that you’re 18, I’m going to start coming to you for advice. And money. Happy birthday! 

• You’re never too old to play games or dream big. I pray you keep a smile on your face and a youthful spirit. 

• You can grow older but please never get old. Happy birthday! 

• So, you’ll do my taxes for me this year, right? Happy birthday! 

• Some of us really thought you might not make it to today because of your reckless childhood. Now that you’re an adult, I’m terrified of what you might do. Just kidding! Happy birthday 

• I hope you’ll keep an open heart and open spirit as you gain life experience. Happy birthday, dear one.