Longman Dictionary of Contemporary English
n. A method of cheating somebody by winning their confidence and inducing them to hand over money (or other valuables).
A confidence trick (synonyms include confidence game, confidence scheme, ripoff, scam and stratagem) is an attempt to defraud a person or group after first gaining their confidence, used in the classical sense of trust. Confidence tricks exploit characteristics of the human psyche such as dishonesty, honesty, vanity, compassion, credulity, irresponsibility, naïveté and greed.
Usage examples of "confidence trick".
The confidence trick would have ended in five minutes if it hadn't been for John Self.
After every sale in those early days he felt he had pulled off a deep confidence trick, and had difficulty in hiding his exultation.
I realize that you have heard that sort of thing before, and that my suggestion has all the appearance of a confidence trick, except that I do not offer you even the substantial security of a gold brick.
Some kind of elaborate confidence trick has made them into what the veterinary fellows call host-mothers.
But for the mass of historical evidence, he could have suspected a gigantic public-relations confidence trick.