Puff"er (?), n. 1. One who puffs; one who praises with noisy or extravagant commendation.

2. One who is employed by the owner or seller of goods sold at suction to bid up the price; a by-bidder. Bouvier.

3. (Zoöl.) (a) Any plectognath fish which inflates its body, as the species of Tetrodon and Diodon; -- called also blower, puff-fish, swellfish, and globefish. (b) The common, or harbor, porpoise.

4. (Dyeing) A kier.