one-horse town definition
A small and unimportant place, as in Ours was just a one-horse town until the nuclear plant was built. This expression, first recorded in 1857, presumably alluded to a town so small that a single horse would suffice for its transportation needs.
|a fool or simpleton; ninny.|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|