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When you're fucking a girl and promise to pull out, and then cum inside her instead.
When Jim was finished, Jessica realized she's gotten a sticky creampie surprise between her legs.
by MilwArchGuy December 16, 2007
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2
When a guy busts a nut in a girl's pussy without her permission and/or knowledge.

Note: Do NOT do this if the girl knows who you are or can track you down.
Dude: Dam, I just gave you a creampie surprise, babe.

Girl: You asshole. What if I get pregnant?!

Dude: Hehe. Who cares. You don't even know my name.
by sniper479 July 10, 2008
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3
while your railing a chick anally, you blow your load in her ass, then you pull out and leave. but before you go, you say "good luck with that."
Tron:Hey bro, last night I gave this chick the ol' creampie surprise.
Brady:Dude, that's fuckin awesome!
by TRON THE MAN January 21, 2007
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4
When you go down on a woman only to find that she's been freshly fucked by another man but she purposely didn't mention it!
Jack: Jill, your pussy tastes different!
Jill: do you like it?
Jack: I'm not sure!
Jill: (grabbing Jack's hair and wrapping her legs around his neck) Well, surprise! It's full of some other guys cum, lap up your Creampie surprise!
by un-herd October 03, 2015
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5
when you un-expectedly jizz in a girls asshole, and then it leeks out.
or you whip it out of her ass real quick and unload a full clip in her face and give her a free facial that she was not prepared for
Jill: uhh!...the other day, dave gave me a cream pie surprise!
by Little Gords March 14, 2007
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