Loose cannon

What does "Loose cannon" mean?

Today it means: Wild and un-predictable, could do anything.

Cannons onboard ship were secured with large warps to keep them in place either when fired or whilst at sea. Cannons are really, really heavy so if they became loose they could roll around the deck causing a vast amount of damage and injury. Their movement was often wild and un-predictable.

   

By SailingQuiz September 2019   Category: Nautical Saying              



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What does Loose cannon mean?

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Definition of the nautical phrase "Loose cannon".

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