A punch in the mouth.
More example sentences
- If you are not, then let me know and I will try to persuade you further - with a knuckle sandwich!
- The short one, David, delivered a knuckle sandwich, which was also blocked.
- He and Sam both gave me a double knuckle sandwich.
More definitions of knuckle sandwichDefinition of knuckle sandwich in:
- The British & World English dictionary