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:

    “Care-charmer Sleep, son of the sable Night,
    Brother to Death, in silent darkness born,
    Relieve my languish, and restore the light,
    With dark forgetting of my cares return.”
    —Samuel Daniel (1562–1619)

    “A fly, Sir, may sting a stately horse and make him wince; but one is but an insect, and the other is a horse still.”
    —Samuel Johnson (1709–1784)