Top Definition
A phrase to describe you just got it on with a girl, usually more than one.

It can be used in past, present and future tense (see example).
Past: he jumped the party
Present: he's jumping the party
Future: he's going to jump the party
by koolkalifornia February 09, 2005

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To jump the party is to have sex with more than one person at a time usually when everybody is fucking wasted.
Matt: When she asked me if I wanted to have sex I had no idea she meant jump the party with her whole sorority!
Steve: Dude, you should have invited me.
Matt: Hell no! If I'd have seen you naked my simon would have went limp.
by Matt McD October 15, 2005

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The phrase "jump the party" is strictly heterosexual and means "to have adult relations with the opposite sex."

Where this phrase came from is a bit of a mystery but seems to have originated in the Midwest area of the United States.
I'm going to jump the party with that chick at the end of the night. Maybe she'll invite her girl friends too.
by dmancool February 14, 2005

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