(in the French Revolution) a revolutionary of the poorer class: originally a term of contempt applied by the aristocrats but later adopted as a popular name by the revolutionaries.
lower-class republican of the Fr. Revolution, 1790, from Fr., lit. "without breeches;" the second element a dim. of cul "bottom, backside," from L. culus. Usually explained as referring to the class whose distinctive costume was pantalons (long trousers) as opposed to the upper classes, which wore culottes (knee-breeches), but this is not certain.