hatchet man (n.)
- apache
- assassin
- assassinator
- backbiter
- battler
- belligerent
- blade
- bravo
- brawler
- bruiser
- bully
- bullyboy
- butcher
- cannibal
- combatant
- competitor
- contender
- contestant
- cutthroat
- cynic
- defamer
- depreciator
- desperado
- detractor
- disparager
- disputant
- duelist
- enforcer
- eradicator
- executioner
- exterminator
- fencer
- fighter
- gamecock
- garroter
- gladiator
- goon
- gorilla
- gun
- gunman
- gunslinger
- hanger-on
- heeler
- hellion
- henchman
- homicide
- hood
- hoodlum
- hooligan
- killer
- knight
- knocker
- libeler
- man-eater
- manslayer
- matador
- militant
- muckraker
- mudslinger
- mug
- mugger
- murderer
- pesticide
- plug-ugly
- poison
- poisoner
- quarreler
- railer
- rioter
- rival
- rough
- roughneck
- rowdy
- ruffian
- scrapper
- slanderer
- slaughterer
- slayer
- squabbler
- strangler
- strong-armer
- struggler
- swashbuckler
- sword
- swordsman
- terror
- thug
- tilter
- torpedo
- tough
- traducer
- wrangler