Boss Girl Mafia: Flesh Punishment (Lynch) (1980)

Two young delinquent girls survive on the streets by selling themselves as high school students. But the local girl gang catches them working their territory and brings them to their boss. After they witness a girl getting brutally punished for not obeying their rules the two are given a choice. Join or suffer the consequences. Thus begins a battle of wills and razors as two headstrong women clash.