1) Card player 2) Card shark 3) Card sharp 4) Card sharper 5) Cardsharper 6) Casino slickster 7) Chiseler 8) Chiseller 9) Gambler of the Old West 10) Gouger 11) Grifter 12) One with an ace up his sleeve 13) One with bad table manners 14) One with unusually fine hands 15) Poker cheater 16) Professional swindler 1) Cardsharper 2) Cheat 3) Rook 
[n] - a professional card player who makes a living by cheating at card games
card sharp noun a professional card player who makes a living by cheating at card games