caillou

gravel, small stone; head

“Est-ce qu'il se trouve sexy, lui, dans son costard pourri et quatre cheveux de rab sur le caillou ?” — King Kong Theory

Borrowed from Norman caillou, from Old French caillou, kailleu, caillo, caliou, cailloun, calloun, related to Judeo-Old French chailos, chaillous and Old French chaille (“small stone, pebble”), of uncertain origin. Perhaps from a Transalpine Gaulish *caljo- or less likely allied to Old Dutch kei (“stone”), from Proto-West Germanic *kagi. Compare Picard cailleu, Walloon caie; also Dutch kei (“stone, rock”).