Popular misspelling/abbreviation/repetition of the word shenanigans. Means to gather a group of friends (preferrably 5 or 6), pile them into a Mitsubishi Chariot (or other suitable motor vehicle), drive around the city streets, yelling miscellaneous phrases out of the windows, including, but not limited to "How's your Aunty?" and capturing it all on a digital video camera for one's viewing pleasure thereafter.
by Captain Starlight January 31, 2005
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