Source : Webster's Revised Unabridged Dictionary (1913)

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.]