It's an arrevesada way or distorted say Jet. It is used in the jargon of gang members. It also means grandulon, brawny, fortachón, corpulent. Legendary mythological bird of large size and high strength.
1. In slang, is the Jet vesre. 2. Fabulous and gigantic bird from Persian mythology, also called ruc, farsi 1585; 1582; ( 41 rokh;. See: Jet.