Just before you start fucking a girl she asks if you have a condomn and you say yeah, so you fuck her in the dark and when she gets done she looks down and sees you didnt have one on and starts to yell at you. All you say is oops!
I didnt have a condomn last night so i had to pull a seattle slip up
by Spot31 October 12, 2007
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sliding your dick up into a real tight bitch's pussy.

having your bitch slide down on your dick and its real fuckin tight.
"Yo Dan V. I just slipped up in something real fuckin tight last night son"
"Yo have you heard about Dan V. in Brazil? He slipped up in something real fuckin tight"
by Tarik A. March 2, 2005
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