38+ Hilarious 40th Birthday Messages to Make Your Brother Laugh Out Loud

Turning 40 is a big deal, especially for your brother who’s probably still pretending he’s 25. Let’s help you find the perfect funny birthday message to make him laugh out loud.

Whether he’s the jokester of the family or the sarcastic silent type, these hilarious 40th birthday wishes will hit just the right note. It’s all about celebrating him with humor and warmth.

Getting older is inevitable, but laughing about it is optional—and highly recommended. These messages balance cheeky fun with brotherly love in just the right measure.

Ready to make your brother’s 40th birthday unforgettable? Here are 38+ hilarious messages guaranteed to get a chuckle or two.

Classic Funny Birthday Wishes

Sometimes the best laughs come from the classic birthday jokes everyone knows but still loves. These timeless messages are perfect for a brother who appreciates humor with a traditional twist.

They’re straightforward, easy to relate to, and can be delivered with a wink or a smile. Perfect for cards, texts, or even a funny toast.

Here are some classic funny birthday wishes that never go out of style.

1. “Happy 40th! Don’t think of it as getting older, think of it as becoming a classic.” – A lighthearted way to remind him that age just adds value.

2. “Congrats on turning 40! Your warranty may have expired, but you’re still running strong.” – Like a vintage car, still impressive despite a few quirks.

3. “40 is just 18 with 22 years of experience.” – A fun way to highlight maturity without losing youthfulness.

4. “Welcome to 40! Now you’re officially a member of the ‘I don’t remember why I walked into this room’ club.” – Poking fun at those occasional forgetful moments.

5. “You’re 40! Time to start lying about your age… or just embrace the gray.” – A cheeky nudge about aging gracefully or not.

6. “Happy 40th! Don’t worry, you’re still younger than you’ll be next year.” – Optimistically humorous take on getting older.

7. “At 40, your back goes out more than you do.” – A classic joke about the physical realities of aging.

8. “40 isn’t old… if you’re a tree.” – A funny comparison that keeps things light.

9. “You’ve hit 40! Time to trade partiers for early bird specials.” – Playfully acknowledging changing lifestyle preferences.

10. “Happy 40th! Now you can start blaming your mistakes on ‘senior moments.’” – Giving him a humorous excuse for forgetfulness.

11. “Congrats! You’re now 20 years wiser than you were at 20.” – A positive spin with a subtle joke.

12. “40? More like 18 with 22 years of experience.” – Another variation emphasizing youthful spirit.

13. “You’re not 40, you’re 18 twice over.” – A playful way to deny the number.

14. “Forty and fabulous! Just don’t try to do a backflip.” – Encouragement with a humorous warning.

15. “40 candles? Just think of it as a fire hazard that proves you’re loved.” – A funny take on the birthday cake tradition.

Ready for some witty one-liners and clever quips? Let’s dive into the next section of sharp and snappy messages.

Witty One-Liners for Your Brother

If your brother loves a quick, clever joke, these one-liners will be right up his alley. Short and sweet, they pack a punch with minimal words.

Perfect for text messages, social media captions, or quick birthday card inserts, these witty lines keep things light and fun.

Check out these 15 witty one-liners guaranteed to get a smirk or a snort.

16. “40 is the new 30… but with more naps.” – A playful acknowledgment of aging energy levels.

17. “You’re not old; you’re just well-seasoned.” – A fun compliment disguised as an age joke.

18. “40: When your body starts sending you ‘unsubscribe’ emails.” – A humorous metaphor for aches and pains.

19. “Congrats, you’re 40! Time to start blaming the dog for everything.” – A cheeky way to shift responsibility.

20. “At 40, your secrets are safe with your friends… because they can’t remember them either.” – Poking fun at memory lapses.

21. “You’re 40? I demand a recount.” – Denial wrapped in humor.

22. “40 years of awesomeness—and counting!” – Celebratory with a confident edge.

23. “Don’t think of it as 40, think of it as 18 with 22 years of practice.” – A clever twist on youthful spirit.

24. “40 and still a legend in your own mind.” – Playfully teasing his ego.

25. “Welcome to 40, when your back goes out more than you do.” – Another take on physical aging humor.

26. “You’re not getting older, you’re leveling up.” – Gaming-inspired humor about aging.

27. “40: The age when your candles cost more than your cake.” – A fun take on birthday expenses.

28. “You’re 40? Already? Time flies when you’re having fun… or napping.” – A humorous observation on time.

29. “Forty and fabulous, but don’t try to party like you did at 20.” – A playful warning about limits.

30. “40 is just 18 with 22 years of experience—and a few more gray hairs.” – Witty and affectionate.

Next, let’s explore some hilarious birthday texts you can send to your brother for instant laughs.

Funny Birthday Texts to Send

Sometimes a quick text is all you need to brighten your brother’s special day. These funny birthday texts are perfect for sending a laugh straight to his phone.

Whether you’re close or live far apart, a funny message can make him feel loved and entertained instantly.

Here are 15 funny birthday texts that will make him chuckle.

31. “Happy 40th! You’re officially too old to trust your own Facebook memories.” – A joke about social media throwbacks.

32. “Hope your day is as amazing as you pretend your life is on Instagram!” – A playful jab at social media personas.

33. “40? At this point, you should get a senior discount… or at least a nap.” – A humorous suggestion for perks.

34. “Congrats on being 40! You’re now qualified to give unsolicited advice.” – Teasing his newfound ‘wisdom.’

35. “Don’t worry about turning 40. You still look just as tired as you did at 30.” – A funny observation on life’s fatigue.

36. “Happy birthday! May your day be filled with cake and zero responsibilities.” – A wish for carefree fun.

37. “40 years and you still can’t act your age—thank goodness!” – Praising his youthful spirit.

38. “At 40, it’s less about the party and more about the after-party recovery.” – A realistic take on celebrations.

39. “Remember, 40 is just a number… a really big, scary number.” – A gentle tease about age anxiety.

40. “You’re 40 today! Time to start practicing your ‘back in my day’ stories.” – Encouraging playful nostalgia.

41. “Age is just a number, but in your case, it’s a really high one!” – Light ribbing about age.

42. “Happy 40th! Let’s celebrate before your bedtime.” – A funny nod to changing energy levels.

43. “Congrats on being 40! You’re now old enough to know better, but still young enough to do it anyway.” – Highlighting mischief at any age.

44. “40 and still rocking it—just maybe with a little more back pain.” – A playful look at aging.

45. “You’re 40! Time to start using phrases like ‘kids these days’.” – Inviting classic ‘old person’ humor.

Next up, discover some hilarious birthday quotes that capture the spirit of turning 40 perfectly.

Hilarious Birthday Quotes About Turning 40

Quotes can capture the essence of turning 40 with wit and humor. These funny birthday quotes are great for speeches, cards, or social media captions.

They offer a mix of sarcasm, truth, and laughter that anyone hitting the big 4-0 will appreciate.

Here are 15 hilarious quotes about turning 40.

46. “At 40, your body gives you signals – mostly to stop doing stupid stuff.” – A humorous take on aging wisdom.

47. “You know you’re 40 when your back goes out more than you do.” – Classic aging humor.

48. “40 isn’t old… if you’re a tree.” – A funny comparison that lightens the mood.

49. “Life begins at 40… but so do the aches and pains.” – Balancing optimism with reality.

50. “Forty is when you finally get your head together, but your body starts falling apart.” – A witty truth.

51. “At 40, you’re not old, you’re vintage.” – A fun way to celebrate age.

52. “Turning 40 means you’ve mastered the art of pretending to know what you’re doing.” – Sarcastic and relatable.

53. “The secret to staying young at 40 is lying about your age.” – A cheeky tip.

54. “40 is the age when your secrets are safe with your friends because they can’t remember them either.” – A funny memory joke.

55. “Midlife crisis? Nah, I call it ‘midlife adventure.’” – A playful spin on a common phrase.

56. “Age is merely the number of years the world has been enjoying you.” – Sweet with a humorous undertone.

57. “At 40, you’ve got more wisdom and fewer reasons to care.” – Celebrating carefree maturity.

58. “The best part about turning 40? You can blame everything on ‘old age.’” – A perfect excuse.

59. “40 is just a number, but wrinkles are the real trophies.” – A funny way to embrace signs of aging.

60. “If 40 is the new 30, then I’m just hitting my prime!” – Optimistic and funny.

Next, we’ll look at some lighthearted roasting jokes perfect for brothers with a great sense of humor.

Lighthearted Roasts for Your Brother’s 40th

If your brother enjoys a good roast, these jokes will keep the mood fun and teasing without crossing the line. Roasts are all about love disguised as playful mockery.

Use these to add some spicy humor to the celebration and watch him laugh at himself.

Here are 15 lighthearted roasts tailored for a 40-year-old brother.

61. “Happy 40th! You’re now officially a ‘vintage model’—priceless but with a few scratches.” – A roast with affection.

62. “At 40, you’ve still got all your marbles… just a few more dents.” – Poking fun at aging brains.

63. “Congrats on 40 years of bad decisions and great stories.” – Celebrating his wild side.

64. “You’re 40 now, which means you’ve survived 40 years of your own jokes.” – Teasing his humor.

65. “40 isn’t old, it’s just ‘well seasoned’—like that leftover pizza you keep forgetting about.” – A funny analogy.

66. “You’re 40? Time to start lying about your age, or just blaming everything on arthritis.” – A classic roast.

67. “At 40, you’re like a software update—slower but necessary.” – A tech-inspired joke.

68. “40 and still acting like a kid—some things never change.” – Playfully calling out immaturity.

69. “You’re 40! Time to upgrade from ‘party animal’ to ‘party napper.’” – Fun lifestyle roast.

70. “Being 40 means you’re old enough to know better, but still young enough to do it anyway—and we love that about you.” – Affectionate roast.

71. “You’re 40 and still can’t figure out where you put your keys.” – A relatable joke about forgetfulness.

72. “Happy 40th! Now your back goes out more than you do.” – Classic aging humor roast.

73. “40? That’s just the number of times you’ve hit ‘snooze’ this morning.” – A funny jab at morning struggles.

74. “Congrats on being the oldest teenager I know.” – A roast celebrating his youthful spirit.

75. “40 and fabulous—well, fabulous in your own mind.” – A cheeky compliment.

Finally, let’s wrap things up with some funny captions perfect for posting your brother’s 40th birthday photos.

Funny Captions for 40th Birthday Photos

Photos capture the memories, and a clever caption makes them unforgettable. These funny captions add personality and humor to your brother’s 40th birthday pictures.

Use them on Instagram, Facebook, or anywhere you share moments to get some laughs and likes.

Here are 15 hilarious captions for his big day.

76. “40 and still the life of the party—just with more comfortable shoes.” – A fun way to caption his birthday selfies.

77. “Old enough to know better, young enough to still do it.” – Perfect for a playful photo.

78. “40 years of awesomeness in one snapshot.” – Celebratory and confident.

79. “Warning: 40-year-old in full party mode.” – A cheeky caption for party pics.

80. “Aged to perfection, just like this photo.” – A classy yet funny caption.

81. “40 and fine… and definitely not whining.” – A lighthearted take on aging gracefully.

82. “Not 40, just 18 with 22 years of experience.” – A timeless caption for any celebration.

83. “Still got it at 40—just maybe not as fast.” – A humorous nod to slowing down.

84. “Born to be wild… now with a 40-year warranty.” – Playful and funny.

85. “40 candles, zero regrets.” – Perfect for a birthday cake photo.

86. “40 and fabulous—proof that age is just a number.” – Positive and funny.

87. “Not over the hill, just picking up speed.” – An energetic caption.

88. “Cheers to 40 years of making memories (and mistakes).” – Honest and humorous.

89. “40 and thriving, with a little help from coffee and sarcasm.” – Relatable and funny.

90. “Still young at heart, just with more back pain.” – A perfect closing caption.

Your brother’s 40th birthday is a milestone worth celebrating with laughter and love. Feel free to mix and match these messages to fit his unique personality.

Remember, humor is the best gift you can give—because laughter brings you closer no matter how old you get.

So go ahead, make his day unforgettable with one of these hilarious birthday wishes, and watch the smiles roll in!