English

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Alternative forms

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Etymology

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From the expression rare as rocking horse shit, with the joke being that rocking horses do not produce feces.

Pronunciation

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Noun

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rocking horse shit (uncountable)

  1. (idiomatic, vulgar, slang) Something exceedingly rare or, more likely, nonexistent.
    Synonyms: hen's tooth; see also Thesaurus:rarity
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See also

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