Jackspeak of the Royal Canadian Navy

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Common Dog (CDF)

Refers to the term 'Common Dog F--k', but it actually means "common sense". If someone lacks CDF it means they lack common sense. A running gag was to ask the Boatswain's Mate to pipe someone to the "CDF locker."

Added: 2014-11-01 Last modified: 2018-10-19

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