Top Definition
To be dissed by ones hommies for committing a foolish act.
A Gup Mode occurs when someone does something stupid and the event is witnessed by another, or a group.
To signal a Gup Mode, simply give a double chop to the right hand side of your neck using your right hand.
by Durvid Lurfurty December 16, 2006
6 Words related to [Gup Mode]

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