Top Definition
a person who consumes all of the alchohol or drugs at a party or gathering and promptly leaves or goes to bed early.
this does not involve passing out as that would be a "barry" or a "whitey".
gurnsey is such a beanomonster, he came round last nite and drank all the cidre and buggered off.
by The fonz appreciation society December 04, 2007
5 Words related to Beanomonster

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