mad dog (?.)
- Mafioso
- Young Turk
- beast
- beldam
- berserk
- berserker
- bomber
- bravo
- brute
- bucko
- bully
- bullyboy
- cutthroat
- demon
- desperado
- devil
- dragon
- fiend
- fire-eater
- firebrand
- fury
- goon
- gorilla
- gunman
- gunsel
- hardnose
- hell-raiser
- hellcat
- hellhound
- hellion
- holy terror
- hood
- hoodlum
- hothead
- hotspur
- incendiary
- killer
- madcap
- monster
- mugger
- rapist
- revolutionary
- rough
- rowdy
- ruffian
- savage
- she-wolf
- spitfire
- termagant
- terror
- terrorist
- thug
- tiger
- tigress
- tough
- tough guy
- ugly customer
- violent
- virago
- vixen
- wild beast
- witch
- wolf
