rocking horse shit

名词 n.
中文释义

英文释义

名词 n.
  1. Something exceedingly rare or, more likely, nonexistent. idiomatic,slang,uncountable,vulgar

词形变化

rocking-horse shit alternative

词源

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