confidence trick con·fi·den·cetrick uncommon noun 1. a swindle in which you cheat at gambling or persuade a person to buy worthless property Synonymsbuncobunco gamebunkobunko gameconconfidence trickconfidence gamecon gamegyphustlestingflimflam Related words Word family gypconbunco Broader terms swindle Narrower terms sting operation WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.