The Collaborative International Dictionary of English v.0.48:
Biter \Bit"er\, n. 1. One who, or that which, bites; that which bites often, or is inclined to bite, as a dog or fish. "Great barkers are no biters." --Camden. [1913 Webster] 2. One who cheats; a sharper. [Colloq.] --Spectator. [1913 Webster]WordNet (r) 3.0 (2006):
biter n 1: someone who bites