A dark horse

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Meaning

An unexpected contender or winner, a surprise.

Origin

From 19th-century Britain, tied to racing; 'dark horse' meant an unknown, slang by 1830s in a Disraeli novel for a surprise win. A 1840s 'Times' uses it for a vote shock.

Variants

  • Dark horse

Usage Examples

  • She's a dark horse; won out of nowhere!
  • A dark horse in the race; surprised us.
  • Dark horse; he's the quiet champ.

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