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Region: US | Usage example: Duck and cover when you hear thunder if the storm is severe.

Duck and cover

Meaning

React quickly to avoid danger.

Usage

Originally civil defense advice; now general caution.

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.

Cold War-era safety drill phrase.

Taught in classrooms during the 1950s and still referenced in cultural memory.