D defs.my
Entry 2 senses Webster, 1913

one-horse

· one·-horse · IPA
01 a. Drawn by one horse; having but a single horse; as, a one-horse carriage.
  1. 1.
    Drawn by one horse; having but a single horse; as, a one-horse carriage.
  2. 2.
    Second-rate; inferior; small; as, a one-horse town.[Slang, U.S.]