take the fifth v. phr.,
informal 1. Taking refuge behind the Fifth Amendment of the Constitution of the United States which guarantees any witness the right not to incriminate himself while testifying at a trial.
Alger Hiss took the Fifth when asked whether he was a member of the Communist Party. 2. Not to answer any question in an informal setting.
Have you been married before?
■ I take the Fifth. [TahlilGaran] English Idioms Dictionary ▲