n. a professional card player who makes a living by cheating at card games. [ WordNet 1.5 ]
n. A person who bargains closely, especially, one who cheats in bargains; a swinder; also, a cheating gamester. [ 1913 Webster ]
Sharpers, as pikes, prey upon their own kind. L'Estrange. [ 1913 Webster ]
Syn. -- Swindler; cheat; deceiver; trickster; rogue. See Swindler. [ 1913 Webster ]