means A fastener with a spiral ridge that bites into material as you turn it, holding things together; also the act of twisting, and a whole slang family meaning to cheat, ruin, or have sex.

from From Middle English, borrowed from Old French 'escroue,' which meant a nut or female threaded fitting — itself probably from Latin 'scrofa,' a sow or female pig. The popular tale links the connection to a pig's twisty tail, and while that image is irresistible, the precise route from sow to fastener is genuinely murky and may instead run through a Latin word for a screw-shaped pin. The vulgar and 'cheat' senses are much later figurative twists on the literal turning motion.