1. Sis, happy birthday! You know, you're like the funniest sitcom on TV, but with way more drama and way better punchlines. Here's to another year of you cracking me up!
2. Happy birthday to my sis, the one who always makes me laugh so hard I snort. You're like the human equivalent of a never - ending supply of hilarious memes. Have an epic day!
3. Hey, sis! On your birthday, I just want to say that if there was an award for the funniest sister in the universe, you'd win hands down. Keep being the life of every party!
4. Happy birthday, sis! You're the reason I have so many embarrassing but hilarious stories to tell. Here's to another year of you being the most entertaining person I know.
5. Sis, you're like a stand - up comedian in our family. Your jokes are always on point, and today, on your birthday, I'm laughing extra hard for you. Have a blast!
6. Happy birthday to the sister who can turn any dull moment into a sidesplitting adventure. You're a natural - born funny bone, and I'm so lucky to have you.
7. Hey, sis! Another year older, but still just as funny. You're like a walking, talking, laughing emoji. Hope your birthday is as epic as your sense of humor.
8. Happy birthday, my sis! You're the kind of person who can make me laugh even when I'm trying to be mad at you. Here's to more years of your crazy antics.
9. Sis, you're the queen of comedy in our family. On your special day, I hope you get all the cake and all the laughs. You deserve it!
10. Happy birthday to my sis, the girl who always has a witty comeback. You're like a comedic genius, and I can't wait to see what funny things you do this year.
11. Hey, sis! Your birthday is the perfect time to celebrate how much you've made me laugh over the years. You're the funniest person I've ever met, and that's a fact.
12. Happy birthday, my sis! You're like a box of surprises, and most of those surprises are really funny jokes. Have a birthday filled with joy and laughter.
13. Sis, you're the life of the party, and on your birthday, it's your turn to be the star of the show. Here's to another year of your hilarious jokes and funny stories.
14. Happy birthday to the sister who can make me laugh until I cry. You're a true gem, and I hope your birthday is as amazing as you are.
15. Hey, sis! You're like a ray of sunshine with a side of comedy. On your birthday, I hope all your wishes come true, especially the ones that involve more funny moments.
16. Happy birthday, my sis! You're the reason I have a six - pack from laughing so much. Keep being the funniest person in my life.
17. Sis, you're the funniest person I know, and I've met a lot of people. On your birthday, I hope you get to do all the crazy, funny things you've ever wanted to do.
18. Happy birthday to my sis, the one who always knows how to make me laugh, even on my worst days. You're a true blessing, and I love you!
19. Hey, sis! Another year older, but your sense of humor just keeps getting better. You're like a fine wine, but with more jokes. Have a fantastic birthday!
20. Happy birthday, my sis! You're the funniest, quirkiest, most amazing sister in the world. Here's to many more years of laughter and love.