knuckle dusters are another term for the illegal, easily concealable weapon, brass knuckles.
To dust ones knuckles is to put on Brass Knuckles.
A: Oh shit son! Check out them knuckle dusters! that guys gonna fuck somebody up!
B: That guy just got a knuckle dusted fist to the chin.
C: I'm gonna have my knuckles dusted tonite.
Buy a
knuckle dusters
mug!
