rocking horse manure

rocking horse manure

slang Something is extremely rare or unlikely; all but, or most likely, impossible or non-existent. Typically used in the phrase "(as) rare as rocking horse manure." An honest person in politics? Yeah, that's as rare as rocking horse manure. I'm sorry to say, but the part this engine needs is rare as rocking horse manure. They haven't manufactured these in nearly 50 years!
See also: horse, manure, rocking

rocking-horse manure

something extremely rare. Australian informal
See also: manure
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