It's simras birthday 

Means "I love you". It's what the kids are saying these days

Person 1: yo wassup
Person 2: it's simras birthday
Person 1: love you too bro

It's simras birthday by Jarbie December 22, 2016

PewDiePie's Birthday 

On October 24th, 1989. A Swedish baby was born, And that was Felix Arvid Ulf Kjellberg.

"What day is it today?"
"Its Pewdiepie's birthday!"

PewDiePie's Birthday by IsaiasDoesDefinitions October 24, 2019

Happy Birthday Bitch! 

A phrased used to tell your best-girl "Happy Birthday".

Girl 1: Happy birthday bitch!

Birthday Girl: Thanks gurl, I'm gettin' fucked up tonight!

Happy Birthday Bitch! by L-Breezy March 14, 2007

Obtuse, rubber goose, green moose, guava juice,Giant snake, birthday cake, large fries, chocolate shake 

A roast that is rarely used but is critical when used

Me to a fucktard that roasted me: What did you say you Obtuse, rubber goose, green moose, guava juice,Giant snake, birthday cake, large fries, chocolate shake ass fucktard?

Obtuse, rubber goose, green moose, guava juice,Giant snake, birthday cake, large fries, chocolate shake by IsaacTheMan_YT March 22, 2021

Diamond Birthday 

When your age matches your IQ.

Hey Joe, Happy Diamond Birthday.

Diamond Birthday by Strikefalcon August 1, 2022

The Birthday Cake 

Having sex with a girl from behind, and finishing on her ass. After you've finished you use a rubber spatula to evenly distribute the cum on her butt cheeks, as if it were icing on a cake. When this is complete you may stick a candle in her butt hole and light it. Finish off by putting on a birthday party hat and you have successfully completed The Birthday Cake.

"Dude, I gave Steph the birthday cake last night!"

"Oh that's nice of you dude, was it red velvet or...?"

"No dude, I came on her butt and smeared it with a spatula."

The Birthday Cake by B Hayes April 15, 2013

happy birthday 

a good comeback; you could say this if the person you are come-back-ing with has already used the 'your face' comeback

you : YOU'RE A FAG
person : your face is a fag
you : well HAPPY BIRTHDAY

happy birthday by sdfksd May 13, 2006