Top Definition
A party where people go to engage in sexual activity with each other. Whether you're craving for pussy, cocks, jugs, jizz, or ass, sex parties are probably one of the best things you would experience in the world. See also orgy
Percy invited most of his classmates to his house for a sex party in his backyard, but why didn't he invite ME???
by LeTomTornados September 14, 2011
Where you invite a bunch of your mates over to get pissed but involves no sex what so ever.
Hey Tim lets get everyone together for a sex party on the weekend.
by Phanalax November 03, 2007

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