From Longman Dictionary of Contemporary Englishconfidence trickˈconfidence ˌtrick noun [countable]  TRICK/DECEIVEa dishonest trick played on someone in order to get their money SYN con —confidence trickster noun [countable]
                                                    
                                                Examples from the Corpus
confidence trick• A professional golfer tries to pull off a confidence trick against his own body.• Being the host with the most was essential to Archer's confidence trick. 
