bruiser (n.)

• bantamweight
• bodyguard
• bouncer
• boxer
• enforcer
• featherweight
• fighter
• flyweight
• goon
• gorilla
• gun
• heavyweight
• hellion
• hood
• hoodlum
• hooligan
• lightweight
• middleweight
• mug
• mugger
• palooka
• plug-ugly
• prizefighter
• pug
• pugilist
• roughneck
• ruffian
• terror
• thug
• torpedo
• tough
• welterweight