noun, masculine/ky/plural: culs
butt, bum, ass, arse; anus, arsehole, asshole; the bottom, rear (of an object); sex (sexual intercourse); good luck or good fortune
“En effet, le prince Vibescu marchait, comme on croit à Bucharest que marchent les Parisiens ; c’est-à-dire à tous petits pas pressés et en tortillant le cul.” — Indeed, Prince Vibescu used to walk as Bucharest folk believe Parisians walk, that's to say with rapid little footsteps and wriggling his arse.
Inherited from Middle French cul, from Old French cul, from Latin cūlus.