Nipper \Nip"per\, n. 1. One who, or that which, nips. 2. A fore tooth of a horse. The nippers are four in number. 3. A satirist. [Obs.] --Ascham. 4. A pickpocket; a young or petty thief. [Old Cant] 5. (Zo["o]l.) (a) The cunner. (b) A European crab ({Polybius Henslowii}).