(n.) One who swindles, or defrauds grossly; one who makes a practice of defrauding others by imposition or deliberate artifice; a cheat.

Artful Dodger Judas Philadelphia lawyer Yankee horse trader betrayer blackleg body snatcher booster bunco steerer charlatan charmer cheat cheater chicken thief chiseler come-on con man confidence man convict cozener crafty rascal criminal crook deceiver defrauder den of thieves desperado desperate criminal diddler dodger double-dealer embezzler felon filcher flimflam man flimflammer fox fraud fugitive gallows bird ganef gangster gaolbird ghoul glib tongue grafter grave robber gyp artist gypper hoaxer horse trader jailbird jewel thief juggler knave land pirate land shark land-grabber larcener larcenist lawbreaker lifter mobster mountebank outlaw peculator petty thief pilferer poacher prowler public enemy purloiner quisling racketeer reynard robber scofflaw scoundrel scrounger sharper shoplifter shyster slick citizen sly dog slyboots sneak thief stealer sweet talker thief thug traitor trickster two-timer villain white-collar thief