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2.
The act of being gangster; awesome
That guy's jacket is SO Gangsterous!
by HorseRadish97 January 26, 2009
 
1.
of or pertaining to gangsteritity, gangsterness, thugged-out of the most gangsterous kind
snoop (gangsterous) puffing on a gangsterous blunt of chron
by jae-p September 13, 2004