Pluff \Pluff\, v. t. [Prob. of imitative origin.] To throw out, as smoke, dust, etc., in puffs. [Scot.] Pluff \Pluff\, n. 1. A puff, as of smoke from a pipe, or of dust from a puffball; a slight explosion, as of a small quantity of gunpowder. [Scot.] 2. A hairdresser's powder puff; also, the act of using it. [Scot.]