rocking horse shit

短语

发音

AU

别名

rocking-horse shit

释义与例句

n.
  1. 1.

    Something exceedingly rare or, more likely, nonexistent.

    习语 俚语 不可数 粗俗

词源

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

来源：wiktionary