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 17, 2007
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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 11, 2008
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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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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 August 23, 2015
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Find a black chick with really dark pussy lips. Add the cream filling and have her lay on her side so the lips and the cream look like an oreo cookie. While she is catching her breath after what obviously was the best 40 second long sex session of her life, you quickly put on your best Steve Urkel clothing (suspenders with hiked up pants, cheesy shirt, and big glasses). Get her attention, point to her oreo creampie and exclaim in a high pitched voice, "Did I do That?!?"
My girl and I just got done watching that lame show, Family Matters, so I had to give her the classic oreo creampie surprise! Her dark lips and my white cock snot really looked like an oreo!

well done!
by RedDan69 February 9, 2011
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Slang; origin, Dublin's southside. Involves getting so shitfaced that you completely forget about how you creampie surprised that lucky person the night before, until reminded about it later on the next day.
"Holy shit, I can't believe I fucked up again last night and gave that ugly bitch a Blackout City Creampie Surprise, let's hope she's clean."
by Sconson October 26, 2009
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When you cum inside a chick without giving her prior warning.
She let me fuck her without a rubber, but didn't realize I would give her a surprise creampie.
by PulpFictionFan94 May 14, 2017
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