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.