culottes (n.) Look up culottes at Dictionary.com
"a divided skirt," 1911, from French culotte "breeches" (16c.), a diminutive of cul "bottom, backside, backside, anus," from Latin culus "bottom, fundament." Earlier, in the singular cullote, it was used to mean "knee-breeches" (1842). Por le cul bieu "By God's arse" was an Old French oath.