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Region: UK / US | Usage example: The coach read the team the riot act after the third loss.

Read someone the riot act

Meaning

Scold someone severely to discourage bad behavior.

Usage

Used when issuing a stern warning.

Origin & History

Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.

England's 1714 Riot Act required crowds to disperse or face arrest.

Phrase appears in newspapers describing the actual act being read aloud.