knuckle sandwich
noun Slang.
a punch in the mouth with a clenched fist.
Origin of knuckle sandwich
First recorded in 1970–75
Words nearby knuckle sandwich
knuckle,
knuckle ball,
knuckle down,
knuckle joint,
knuckle pads,
knuckle sandwich,
knuckle under,
knuckle-duster,
knuckleballer,
knucklebone,
knucklebones