Definition: 1. Also used to express contemptuous disagreement or disbelief about what has been said.2. Stop putting pressure on someone about something.Origin: A "break" was an interruption in a street performer's act used to collect money from the crowd. The term was taken up by the underworld where it came to mean the money collected for a felon on release from prison - he was given a break. A theory that the popular usage of the phrase meaning disbelief, was popularized in the film E.T.