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Region: US | Usage example: He sat like a bump on a log while others debated.

Bump on a log

Meaning

Someone inert and unresponsive.

Usage

Used to describe passive observers.

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.

Imagery of a log doing nothing.

Common in American speech by the early 1900s.