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Region: US | Usage example: He couldn’t find his backside with both hands when we asked him to set up the new printer.

Couldn't find his backside with both hands

Meaning

Totally incompetent or confused.

Usage

Dismisses people who repeatedly miss the obvious.

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.

American wry commentary on someone unable to complete simple tasks.

Used in US humor columns and roundtable talk in the early 1900s.