big ol’ birthday fart 

The result of a person whose birthday it is eating everything under the Sun that will improve their chance of blowing a huge, incalculable volume of flatulence onto their heavily candled cake in order to quell all the candles with a single, window-rattling flutterblast.

Yup, as we all stood together ‘round the cake, we were suddenly blown right off our feet by Grandpa’s big ol’ birthday fart; he’d been workin’ on that thing for days.

big ol’ birthday fart by Dr Bunnygirl September 7, 2019

You're not invited to my birthday party 

The scariest thing a first grader could hear. Or at least, it's supposed to be. Usually used regardless of when your birthday party would be.

Lilly: *takes crayon from Suzie*
Suzie: *GASPPPPP* You're not invited to my birthday party anymore!
Lilly: But your birthday is in July?
Suzie: SOOO?!
Lilly: It's November.

You're not invited to my birthday party by wolfiebean January 8, 2019

Happy Birthday 

Happy Birthday to anyone who's bored enough to look up happy birthday on their birthday...

Birthday girl: I'm so bored, I'm gonna look up happy birthday on urban dictionary.

Happy Birthday by Ica May 29, 2013

Happy Birthday Nicholas 

The best meme account ever. Very relatable. Loves Dan and Phil , Emos , Death Note, and so much more.

Happy birthday Nicholas: A meme account that is underrated. If you see this hbdn, know that amb and gab love the memes.

Happy Birthday Nicholas by Gabweiss June 24, 2021

Three Point Thursday Birthday 

A gathering of friends on a thursday afternoon with festivities that include basketball, streetball, and koofball. It rarely occurs that a birthday happens to be on three point thursday. Thus leading to a Three point thursday birthday.

Ori has a birthday tomorrow?

Yea man.

You know what that means.

What?

Three Point Thursday Birthday time!

Three Point Thursday Birthday by victor9527 May 29, 2009

uncle's cat's birthday party 

an excuse that someone uses which is most likely a lie

John: Jack didn't show up for work today. Apparently he had to go to a family gathering or something.
Jake: sounds like his uncle's cat's birthday party to me.

uncle's cat's birthday party by ja5nipe5 November 2, 2014

happy fucking birthday

When happy birthday isn't enoug

Happy fucking birthday lobster!

happy fucking birthday by Captn ramrod September 15, 2013