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From Wikipedia, the free encyclopedia.

The phrase "when pigs fly" is an adynaton – a figure of speech so hyperbolic that it describes an impossibility. The implication of such a phrase is that the circumstances in question (the adynaton, and the circumstances to which the adynaton are being applied) will never occur.

The phrase is thought to come from an old Scottish proverb of the 16th century.

Kids In The Hall did a wonderful sketch of The Flying Pig.

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