M: Crash your right fisted hand into your left fisted hand at chest height. (ASL, AUSLAN, BSL)

HUH: Crash your right fisted hand into your left fisted hand at chest height.

C: Move the person’s fisted right hand into their left fisted hand, stop when they make contact.

DB/B: Move your right fist to contact the person’s left fist.

DB/FS: 'ACCIDENT', or 'ACC',