A mass orgy is a form of sex, and is the 5th level on the ladder of sex (2 people = secs, 3 = threesome, 4 = smash, 5 = mass orgy, 6 = shrekfest). It is one of the most famous levels but also the one that many consider the worst form of sex. This is mainly due to the fact that it is a just a build up to the best type of sex, the shrekfest, which usually includes the same people in the mass orgy, but also includes one of the members uncles.
Person A: "That was not fun. The mass orgy is shit. Anyways, whose uncle is gonna be apart of the shrekfest?"
Person B: "Mine..."
by nigerfagot March 22, 2017
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