Dark Horse

A dark horse is a little-known person or thing that emerges to prominence, especially in a competition of some sort or a contestant that seems unlikely to succeed.

Read more about Dark Horse:  Origin, In The Political Arena, Use in Music and Film, Use in Publishing

Famous quotes containing the words dark and/or horse:

    “—the dark ajar, the rocks breaking with light,
    and undisturbed, unbreathing flame,
    colorless, sparkless, freely fed on straw,
    and, lulled within, a family with pets,
    —and looked and looked our infant sight away.”
    —Elizabeth Bishop (1911–1979)

    “A good horse will never return to graze on grass it has already passed by.”
    —Chinese proverb.