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."
"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
"But you can't fake once you hit the gate
Shake 'till it ache, work that birthday cake."
- Step Yo Game Up, Snoop Dogg
Shake 'till it ache, work that birthday cake."
- Step Yo Game Up, Snoop Dogg
by Who Ever I Feel Like Being Today August 2, 2005
another word for weed
by dutyfree23 October 26, 2009
When we got back to Wendy's place, she stripped to her birthday suit and I put some whipped cream on her birthday cake and ate it. Tasty, too. :)
by republican horndog :-p August 4, 2005
When a stripper at a bachelor party attaches on her nipples & vagina, a lit birthday candle, where then the bachelor has to blow them out.
by Charlie Frown September 2, 2012
Like a cream pie, except the woman is not on any birth control, so the cream pie turns into a birthday cake, ie: she gets pregnant.
Man: Oh man, i came in my girlfriend last night, and shes not on the pill!
Friend: Oh Dude! You gave her a birthday cake!
Friend: Oh Dude! You gave her a birthday cake!
by Chris And Libby February 18, 2009
by hobodragon September 1, 2007