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1.
To be extraordinarily good at a game that people think you are cheating.
Matt: "Damn Henry is hax, that foo like gameshark"
Joe: "For real, turn that gameshark off Henry, you too gangsta."
by Arc1337 February 27, 2007
75 24
 
2.
When faced with the closed, prude legs of a female, one might go for the stimulation of the vagina by finger/s. Upon doing so, the female becomes more willing to "put out." ..... its like a cheat code.
Bitch would not let me get it in... i just gamesharked her and she opened up!!
by CoryAllen, Harji March 18, 2010
14 10
 
3.
When someone does something that is so ridiculous and abnormal that it looks like they are cheating in life. This might be a crazy action or anything that seems to defy physics or common sense.
"Yeah last night Geoff and Purdy gamesharked and won life!"
by The Dream Team February 26, 2007
9 42