cross-buttock

From cross- +‎ buttock.

cross-buttock (plural cross-buttocks)

1. (wrestling) A throw in which the wrestler turns his left side to his opponent, places his left leg across both legs of his opponent, and pulls him forward over his hip.

   Synonym: buttocking

2. (by extension) An unexpected defeat or repulse.

• John Camden Hotten (1873) The Slang Dictionary