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The meaning and origin of the expression: Doesn't know shit from Shinola

Doesn't know shit from Shinola

What's the meaning of the phrase 'Doesn't know shit from Shinola'?

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Someone might be said not to know shit from Shinola if they display poor judgment or knowledge.

What's the origin of the phrase 'Doesn't know shit from Shinola'?

Doesn't know shit from ShinolaShinola was a brand of shoe polish previously manufactured in the USA. The alliteration of the expression 'doesn't know shit from Shinola' partly explains the derivation. Also, without putting too fine a point on it, the two things named in the expression could possibly be confused. However, only one of them would be good to apply to your shoes and only particularly dim people could be expected to muddle them up.

Of course, outside America, most people don't know Shinola from anything at all, as they've never heard of it. Even in America it would probably not be widely remembered but for this phrase.

The 'ola' suffix is popular in the USA as part of trade names, e.g. Crayola, Granola etc. This leads to the pronunciation of Shinola as shine + ola. That spoils the alliteration a little as it would work better as shin + ola.

This phrase is typical of the barrack room vulgarity of WWII, which is where it originated. Other "doesn't know" phrases, also mostly from the military are, "doesn't know his a*** from a hole in the ground" (or elbow, or a hot rock, or third base), "doesn't know enough to pee downwind", "doesn't know whether to scratch his watch or wind his ass". The tone is lifted a little by the English conductor Sir Henry Wood who expressed a similar opinion with "he doesn't know his brass from his woodwind".

Gary Martin - the author of the phrases.org.uk website.

By Gary Martin

Gary Martin is a writer and researcher on the origins of phrases and the creator of the Phrase Finder website. Over the past 26 years more than 700 million of his pages have been downloaded by readers. He is one of the most popular and trusted sources of information on phrases and idioms.

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