Related Clues:
- Funny twist
- Winter headwear
- Playful knuckle-rub
- Knuckle rub on the head
- Headlock accompanier, often
- Knuckle-head move?
- Knuckle-headed action?
- Result of knuckling down?
- Painful bit of horseplay
- Prank performed on someone in a headlock
- Knuckle to the head
- Teasing knuckle rub
- Knuckle rub
- Affectionate gesture that Todd gave to Lisa on 'Saturday Night Live'
- Knuckle rub to the head