What is "sukeban"

means delinquent girl or boss girl in Japanese, equivalent to the male banchō. A dictionary of Japanese slang says that sukeban only refers to the leader of a girl gang, not any member of the girl gang.

Girl Boss Revenge: Sukeban is a 1972 Japanese Exploitation film that is directed by Norifumi Suzuki and stars lead females of the genre Reiko Ike and Miki Sugimoto.