1 definition by bumpasumpa

Top Definition
A kiss ass party classified by a small group of awesomely intoxicated college or high school students. Normally employing loud music, innumerable amounts of alcohol, and the possible, yet probable use of marijuana. ( A small rager).
Hey, we're having a bumper at my house tonight, bring your shit.
by bumpasumpa January 17, 2011

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