A variation on the word doppelganger, a doppelgangster is a mobster or thug (such as Al Capone or Snoop Dog) that bears a strong resemblance to oneself.
by hannahlinb February 03, 2010

Forrest found his doppelgangster at the Ridge Crest Inn. His name was the "Goat" and he had just got out of Chino Max.
by forrestree July 09, 2010

Random fan: Dude, this is the coolest shit I've ever heard in my life.
Random fan 2: God damn, you're such a doppelgangster.
Random fan 2: God damn, you're such a doppelgangster.
by Nate Miller June 02, 2008
