According to the Rap Dictionary. http://www.rapdict.org/Jigga "noun jigga Jigga is a shortened form of the old racial epithet 'jiggaboo' commonly applied to African-Americans well into the 1970's. Jigga is one of the many nicknames for Jay-Z, put N***a and Jay-Z together and you get Jigga. "Y'all can never diss Jigga, get nothin for that" -- Jay-Z featuring Kid Capri (It's Like That) [1] A less inflammatory alternate for the word n***a. A term for Xtasy down South A term for a japanese person acting black "