birthday sex

its when you get some sucky or some fucky for your birthday, with no relationship needed
he got her poosy for his birthday, and theyre just friends
by jhjsahdsa October 24, 2004
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Birthday Bash

The overly excessive amount of facebook notifications one receives on his/her birthday due to mainly people that person never talks to wishing them a happy birthday.
I was trying to creep on Courtney's profile, but she got birthday bashed and I didn't feel like scrolling through all of the wall posts
by Carl from Jimmy Neutron January 26, 2011
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Diamond Birthday

When your age matches your IQ.
Hey Joe, Happy Diamond Birthday.
by Strikefalcon August 01, 2022
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Birthday Psychosis

When it's a person's birthday and they announce it every 5 minutes on Facebook for friends to wish them a happy birthday even though everyone already knows. Once their friends are suckered into sending birthday wishes - they then ask for more without saying thank you, leaving everyone amazed and moderately disgusted. Slight variation of attention whore
Birthday brat: HEY EVERYONE ITS MY BIRTHDAY TODAY WISH ME HAPPY BIRTHDAY

Thoughtful Friend: HAPPY BIRTHDAY

Birthday Brat replies: WHERE'S MY GIFT??????????????

Thoughtful friend messages everyone else secretly: OMG!! He has Birthday Psychosis!
by Blappy Pants September 09, 2011
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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."
by B Hayes April 15, 2013
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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
by sdfksd May 03, 2006
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Anti-birthday

A day that occurs near your birthday (usually within 3 or 4 days of it) that really sucks ass for no good reason. Some believe it is meant to balance out the good day that you had on your birthday. Often, an anti-birthday will occur even if your birthday wasn't that great.
John:"Hey Jim! I heard u turned 17 the other day!"
Jim:"ya..." *walks away*
John:"what's with him?"
Joe:"oh dude he's havin his anti-birthday. he's been depressed all day"
by bSbTbEaK September 24, 2008
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