40th Birthday Jokes and One-liners (2024)

Funny 40th birthday jokes for this momentous occasion. Turning 40 is an occasion worth celebrating, and a good excuse for a laugh too!

Our collection includes...

Whether you want to lighten the mood or soften the blow of turning forty, you'll find something funny here to help you out.

Scroll down the page to read all our funny 40th birthday jokes, or click on these links to see a particular subset.

Jokes about Age |Benefits of Aging |You Know You're 40 When... |Grey Hair Jokes |Menopause Jokes

Many of these jokes are short enough for a card message or to include in a 40th birthday speech.

Other ways you might want to use them include as part of the birthday invitation wording, or you could print and frame a one-liner and use it as a part of the 40th birthday party decor. And you can text the birthday girl/guy a joke on their birthday as a funny way to say Happy Birthday!

40th Birthday Personalized Poster
40th Definition Personalized Poster
Funny Personalized Newspaper Generator

40th Birthday Jokes about Aging

Age is like underwear. It creeps up on you.

Don't let aging get you down. It's too hard to get up again.

Middle age: that time when you finally get your head together - then your body starts falling apart.

You know you're getting old when you can't walk past a bathroom without thinking, "I may as well pee while I'm here."

Benefits of Age Jokes

Birthdays are good for you. The more you have, the longer you live!

The best part of being over forty, is that you did most your stupid stuff before the internet.

Don't stress about your eyesight failing as you get older. It's nature's way of protecting you from shock as you walk past the mirror.

Birthdays are nature's way of telling us to eat more cake.

40 is the perfect age. You're old enough to recognize your mistakesbut young enough to make some more.

Don't be upset about your birthday. Just think, you're one year closer to getting the senior citizen discount!

Getting older has some benefits... Call it a "senior moment" and you can get away with pretty much anything!

You know you're 40 when...

You know you're 40 when you're in an elevator when your favourite song comes on.

You know you're 40 when getting lucky means a short wait in the doctor's office.

You know you're 40 when your back goes out more often than you do.

You know you're 40 when your back is hairier than your head.

You know you're 40 when you have a party and the neighbours don't even realise.

You know you're 40 when a kid you once babysat is now your lawyer.

You know you're 40 when someone offers you a seat on the bus. And you don't refuse.

40th Birthday Jokes about Grey hair

Don't worry, they are not grey hairs, they are wisdom highlights. You just happen to be extremely wise.

Those aren't grey hair you see. They're strands of birthday glitter growing out of your head.

A little grey hair is a small price to pay for so much wisdom.

If grey hair is a sign of wisdom, then you're a genius!

40th Birthday Jokes about Menopause

Night sweats and hot flashes are nature's way of lowering your heating bill so you can save more money for your retirement.

Menopause gives me the freedom to say anything. The only filters in my house are for the coffee.

When I asked for a smoking hot body, menopause was not quite what I had in mind.

I'm still hot, but it comes in flashes.

I start out each day as Mary Poppins and end it as Cruella De Vil.

The 7 stages of menopause:Itchy, Bitchy, Sweaty, Sleepy, Bloated, Forgetful, Psycho.

This one doesn't count as a change-of-life joke, but somehow it feels like it should fit in this section.

I don't want to brag or make anybody jealous or anything... but I can still fit into the earrings I wore in high school.

"Year You Were Born" 40th Poster

And if you're looking for a really unique and memorable way to wish someone a happy 40th birthday, then do check out our40th birthday posterfull of interesting facts from the year they were born. Easy to edit and print out at home, your gift will be the talk of the party!

Click here to personalize and print your poster

Everyone thought this was really cool and asked me how I made it!''Rachel, Idaho

We've researched all the interesting and funny facts from the year they were born, and our poster maker formats it all beautifully for you. You can personalize the poster with their name, choose your color palette, and add anything else you want about them.