Meanings
alternative rocking-horse shit
- idiomaticslanguncountablevulgarSomething exceedingly rare or, more likely, nonexistent.
Synonyms: hen's tooth, rocking horse poo, black swan, hen's tooth, lightning in a bottle, one in a million, rara avis, rare bird
Synonyms & antonyms
nounSomething exceedingly rare or, more likely, nonexistent.
Origin
From the expression rare as rocking horse shit, with the joke being that rocking horses do not produce feces.
Full word history & related roots →Cite this entry
rocking horse shit. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/rocking%20horse%20shit
“rocking horse shit.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rocking%20horse%20shit. Accessed November 5, 2026.
WatkinsX Dictionary, s.v. “rocking horse shit,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/rocking%20horse%20shit.
Source: rocking horse shit on Wiktionary, CC BY-SA 4.0.