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1.
An advanced state of intoxication, generally related or pertaining to an assumed level of genius or superiority as a result of ones imbibing of alcoholic beverages at parties, bars, clubs, etc.

In otherwords, you're totally trashed and talkin a lot of shi'ite.
'The guy was so booszhius last night at the party, he thought he could control me with Jedi mind tricks.'
by TheKidDAM December 19, 2005