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1.
A person who tries to portray themselves as a gangster online on sites such as Myspace, sconex, and blackplanet. These people are normally the very opposite of gangster when met face to face.
"He was a b*tch when we tried to confront him. But on his MySpace page he said he was ______ (enter gang). Man he's definetly a computer gangster.
by J-Bizzy March 10, 2006
 
2.
Someone so 1337, that their computer skill is equivalent of a real world gangster.
Damn dude, I know you're good, but that guy who just pwnd you is a downright computergangster!
by my name May 06, 2005