Aaron: "I just saw a blonde Jamaican guy with crazy eyes doing the truffle shuffle up and down the beach."
Blake: "Must have been Gary Busey's doppelgangsta!"
Aaron: "Egads!"
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.