rocking horse shit
See also: rocking-horse shit
English edit
Alternative forms edit
Etymology edit
From the expression "rare as rocking horse shit", based on the observation that rocking horses do not produce faeces.
Pronunciation edit
Audio (AU) (file)
Noun edit
rocking horse shit (uncountable)
- (idiomatic, vulgar, slang) Something exceedingly rare or, more likely, nonexistent.
Synonyms edit
- hen's tooth; see also Thesaurus:rarity