(n.) A violent, irascible, or passionate person.

Mafioso Young Turk battle-ax beast beldam berserk berserker bitch bomber brute cat common scold demon devil dragon fiend fire-eater firebrand fishwife fury goon gorilla gunsel hardnose hell-raiser hellcat hellhound hellion holy terror hood hoodlum hothead hotspur incendiary killer mad dog madcap monster mugger rapist revolutionary savage scold she-devil she-wolf shrew termagant terror terrorist tiger tigress tough tough guy ugly customer violent virago vixen wild beast witch wolf