Turning 40 is a major milestone—it’s the age where you’re old enough to know better but still young enough to do it anyway!
But let’s face it, hitting the big 4-0 comes with its fair share of jokes about reading glasses, back pain, and suddenly being “the responsible one.”
For many, 40 feels like the start of a new chapter—one filled with wisdom, experience, and a whole lot of humor.
Whether you’re celebrating your own 40th birthday or teasing a friend who just hit this milestone, laughter is the best way to make the day unforgettable.
That’s why we’ve gathered the funniest 40th birthday jokes to bring some lighthearted fun to the occasion.
Get ready to laugh, because 40 is just the beginning of the best years yet!
🎉 25 Short 40th Birthday Jokes 🎉
- You know you’re 40 when your idea of a wild night is staying up past 9 PM.
- At 40, your back goes out more than you do!
- They say life begins at 40. So… what have I been doing for the last 39 years?
- 40 is just 18… with 22 years of back pain.
- Welcome to 40! Your warranty has officially expired.
- 40 is when you trade shots of tequila for shots of collagen.
- At 40, naps go from “optional” to “necessary for survival.”
- You know you’re 40 when your favorite app is “Find My Glasses.”
- 40 is proof that you survived your 20s and didn’t peak in your 30s!
- Turning 40 is like getting upgraded to “deluxe” mode… but only for doctor visits.
- You know you’re 40 when your bedtime and your kids’ bedtime are the same.
- Happy 40th! Time to start yelling at the TV more than actually watching it.
- 40 is when you start bragging about how early you wake up… even when you don’t want to.
- The best thing about turning 40? You’re still younger than 50!
- Welcome to 40: where knee pain comes free with every activity.
- At 40, eating a burger after 9 PM requires a doctor’s consultation.
- They say 40 is the new 30… but my knees didn’t get the memo.
- Congratulations on turning 40! Now every injury comes with a 3-5 business day recovery time.
- 40 is the age when “because I said so” starts making perfect sense.
- At 40, you realize staying home is actually a reward, not a punishment.
- Happy 40th! Now you can forget what you walked into a room for… twice as fast!
- You know you’re 40 when a sneeze can throw your back out.
- At 40, you no longer chase trends—you chase comfort.
- 40 is when you understand why your parents always carried Tums everywhere.
- The best thing about turning 40? You can now relate to “dad jokes” on a personal level.
🎈 Long 40th Birthday Jokes 🎈
- Why did the 40-year-old take up yoga?
Because bending over to tie their shoes became a high-risk activity! - What’s the worst part about turning 40?
You can’t party like you did at 20, but your hangovers still last twice as long! - At 40, you finally start listening to your body…
Mostly because it won’t stop making random creaks and groans! - They say life begins at 40.
But if that’s true, why does my back feel like it’s 80? - Why did the 40-year-old refuse to play Twister?
Because getting back up would require a team effort and at least two heating pads. - 40 is the age when you say, “I’ll do that later,” and later turns into next year.
- Why don’t 40-year-olds run marathons?
Because they already ran out of energy getting out of bed! - Turning 40 is like a software update.
You don’t want it, but you have no choice, and everything runs a little slower afterward. - At 40, “going out” means to the backyard… for five minutes… before deciding to go back inside.
- Why do 40-year-olds love online shopping?
Because walking around a store counts as cardio now. - What’s the best part about being 40?
You don’t have to explain your weird hobbies anymore—everyone just assumes it’s a “midlife thing.” - At 40, you realize your metabolism has slowed down…
But your love for pizza hasn’t. - You know you’re 40 when your favorite weekend activity is comparing grocery store prices.
- At 40, your priorities shift from “having fun” to “finding the perfect pillow.”
- Why do 40-year-olds love reading about vitamins?
Because at this age, supplements are more exciting than gossip! - The biggest advantage of turning 40?
No one expects you to help them move anymore. - You know you’re 40 when you start talking about the weather like it’s breaking news.
- At 40, you don’t need a GPS.
Because every trip includes a bathroom stop anyway! - Why did the 40-year-old start eating healthier?
Because their body started issuing warning signs like a used car. - 40 is when you finally accept that sleep is better than any party.
- You know you’re 40 when the “mystery bruise” becomes a weekly occurrence.
- Why do 40-year-olds love online recipes?
Because they include the one thing they actually need: the estimated cooking time! - You know you’re 40 when you get excited about a new sponge for the kitchen.
- At 40, you don’t jog—you “power walk” and pretend it’s the same thing.
- Why do 40-year-olds always stretch before getting out of bed?
Because if they don’t, they might hear something pop! - At 40, you get a workout just from getting off the couch.
- The biggest surprise of turning 40?
Realizing you still don’t have everything figured out. - Why do 40-year-olds prefer dark-colored clothes?
Because they hide the coffee stains from their “I’m still waking up” spills. - At 40, making it through a full movie without falling asleep is an achievement.
- Why did the 40-year-old switch to decaf?
Because they were already wide awake at 5 AM anyway! - 40 is when you start asking, “Was it worth it?” after every meal.
- Why do 40-year-olds love lists?
Because if they don’t write things down, they’ll forget them immediately! - At 40, every stretch sounds like a bag of popcorn popping.
- Why do 40-year-olds stop buying cheap shoes?
Because their feet have earned the right to be picky! - You know you’re 40 when you get excited about finding a comfortable chair.
- 40 is when you finally understand the true value of an afternoon nap.
- Why do 40-year-olds carry snacks everywhere?
Because hunger strikes randomly and aggressively at this age! - At 40, you start stretching before picking up anything from the floor.
- Why did the 40-year-old avoid roller coasters?
Because their back already provides enough unexpected twists and turns. - At 40, you realize that “one more episode” is a trap.
🎈 Long 40th Birthday Jokes (66-75) 🎈
- You know you’re 40 when you bend down to tie your shoes and start wondering what else you can do while you’re down there.
- At 40, you don’t need an alarm clock anymore…
Your bladder wakes you up right on schedule! - Why did the 40-year-old bring a pillow to the party?
Because staying up past 10 PM requires extra preparation! - At 40, your body starts sending you daily push notifications…
But instead of reminders, they’re just random joint pains. - You know you’re 40 when you hear a new song and think, “That’s just noise!”
- Why did the 40-year-old stop running?
Because they realized that their knees charge a cancellation fee! - 40 is when “going hard” means adding extra fiber to your diet.
- At 40, you don’t say “I’m going to bed early.”
You say, “I’m recharging my battery before I overheat.” - Why did the 40-year-old start carrying a heating pad everywhere?
Because sometimes life just hurts for no reason. - The best part about being 40?
If someone calls you “old,” you can pretend you didn’t hear them!
Conclusion
If laughter is the secret to staying young, then these 40th birthday jokes are the perfect way to make turning 40 feel like a celebration, not just another number!
Whether you’re adding humor to a party, writing a funny birthday card, or just enjoying a good laugh, these jokes prove that 40 is fabulous!
Which joke was your favorite? Let us know in the comments!
And if you know someone celebrating their big 4-0, share this list with them—because nothing says “happy birthday” like a great laugh! 🎉😂
