wankster Share definition Flag 1. someone who masterbates; wanker 2. wanna-be gangster 1. look at the friggen wanskster, what a douche 2. Guy 1: yo yoo fo shizzle Guy 2 to guy 3: what a wankster wankster by Megdalinahagdalina March 21, 2008 Get the wankster mug.