(idiomatic) A general expression of distrust, particularly implying that another person is attempting to deceive the speaker, or that a situation is not, or can not be, as it appears.

An American bar game based around guessing the frequencies of digits in the serial numbers of dollar bills held by the various players.

A person who tells blatant and obvious lies.

plural of barefaced liar

plural of pathological liar

The benefit received by those spreading fake information as a consequence of the environment in which there is a great deal of fake information and hence it is unclear what is real and what is fake.