When a guy is fingering a girl's asshole and he puts that finger in his mouth and gags himself until he throws up onto her asshole and then the girl lets out a fart, making a barf bubble, and after it pops, it shows the location of her asshole and then the guy fucks her asshole. HAPPY BIRTHDAY!
"Hey did you hear?"
"Hear what?"
"Oh my god man... Steve was dared by his girlfriend to give her The Happy Birthday on her birthday!"
"Ew man, that's fucking gross."
"Yea but I heard it's like getting high."
"What ever man, that's fucked up!"
by D-Dog#2 May 29, 2009
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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.
by Ica May 29, 2013
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I would define you the song,
but it's unfortunately copyrighted.
small, innocent child: happy birthday to you..

corporate: hey! bad child!
by Clark Buck January 22, 2008
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When it's your 31st birthday, and you live on your own, with no wife, have a crappy job, no friends and no money, this is what you say to yourself in the mirror before bursting out into tears.
Happy birthday to me,
happy birthday to me,
happy birthday dear meeee,
happy birthday to... I suck! Waaaaaah!
by Me. October 11, 2004
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9 months before this date, your parents decided to have unprotected sex
Happy birthday to you, happy birthday to you. happy sex day to your parents!
by skank-a-ma-phone March 1, 2011
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Happy birthday

Used to annoy someone or to say to somewhen there ‘caked’ (wearing a lot of makeup)

You get it cause you have cakes on brithdays “caked”
“Happy birthday”
by Sarahxx__ October 26, 2018
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when you flash an attractive person, show your goodies, free the nip. a free gift for someone you’re trying to impress. just life your shirt and there you go.
OMG there’s adam driver!!!
i’m gonna pull a happy birthday, that will get his attention.
by mr.worldwide_305 August 16, 2021
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