another name for brass knuckles. illegal to carry in most countries. they are a easily concealed piece of metal that has holes to put your fingers through. uses are: punching people in the face, punching people in the head, punching people in the groin, punching people in chest or stomach. used to be used alot by the italian and irish mobs.
Tony: Joey pissed me off yesterday so i bapped him in the nose with my knuckle dusters.