- Happy 40th birthday! Just remember, 40 is the new 30… but with more wrinkles.
- Congratulations on reaching the age where you can no longer pretend you’re in your thirties!
- Here’s to being over the hill and halfway down it! Happy 40th birthday!
- You’re not getting older, you’re just getting closer to being able to wear your pants up to your armpits. Happy 40th!
- Happy 40th! I hope your celebration is as epic as the hangover you’re going to have tomorrow.
- Happy 40th birthday! Don’t worry, you’re still young enough to do stupid things… just old enough to know better.
- It’s official, you’re now a “mature” adult. Don’t worry, it’s not as bad as it sounds… or is it? Happy 40th!
- Congratulations on turning 40! You’re now old enough to know better, but still young enough to do it anyway.
- Happy 40th birthday! Here’s to being old enough to know better, but young enough to still do it.
- Congratulations on reaching the age where you can no longer blame your mistakes on youth. Happy 40th!
- Happy 40th birthday! I hope you’re ready for a midlife crisis… or at least a midlife nap.
- Congratulations on being one year closer to the big 5-0! Happy 40th!
- Happy 40th birthday! Just remember, it’s not the years in your life that count, it’s the wrinkles in your face.
- Don’t worry, 40 is just a number… a really big number. Happy birthday!
- Happy 40th! Here’s to being old enough to know better, but still young enough to ignore that advice.
- Congratulations on turning 40! You’re now at the age where your body starts falling apart… but your mind is still sharp enough to remember it.
- Happy 40th birthday! Just remember, you’re not getting older, you’re just getting closer to being able to get away with more stuff.
- Congratulations on turning 40! It’s all downhill from here… but at least you’re going down in style.
- Happy 40th! Don’t worry, you’re still young at heart… just old everywhere else.
- Congratulations on reaching the age where you can start saying “back in my day” without feeling old. Happy 40th!
- Happy 40th! Here’s to being old enough to know better, but still young enough to forget what you’re doing.
- Congratulations on turning 40! It’s time to start thinking about retirement… or at least a long nap.
- Happy 40th birthday! I hope you’re ready to party like it’s 1979!
- Congratulations on turning 40! You’re now officially middle-aged… but that’s better than being a quarter-life crisis, right?
- Happy 40th! Here’s to being young enough to make mistakes, but old enough to pretend you didn’t.
- Congratulations on reaching the age where your metabolism slows down and your hair starts falling out. Happy 40th!
- Happy 40th birthday! Just remember, it’s not the years in your life that count, it’s the beers in your fridge.
- Congratulations on turning 40! It’s time to start wearing socks with sandals and forgetting where you parked your car.
- Happy 40th! Here’s to being old enough to know better, but still young enough to not care
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