g33kster Share definition Flag m.n. Someone who lives the double life of a gangster and and a geek. Someone with as much cred on the street than on the information highway. Alexis is an original g33kster. He has mad street cred, and his html game is damn well-locked. g33kster by 33mag.com May 14, 2008 0 0 Get merch Get the g33kster mug. Buy Now — $32.95 See more merch