Slouch \Slouch\, n. [Cf. Icel. sl?kra slouching felloew, and E. slack, slug, a lazy fellow.] 1. A hanging down of the head; a drooping attitude; a limp appearance; an ungainly, clownish gait; a sidewise depression or hanging down, as of a hat brim. 2. An awkward, heavy, clownish fellow. [Colloq.] {Slouth hat}, a soft, limp hat of unstiffened cloth or felt.