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:

    “I am absurdly fearful about this voyage. Various little omens have combined to give me a dark feeling.... Perhaps we shall live to laugh at these. But in case of mishap I should perish with my husband and child, perhaps to be transferred to some happier state.”
    —Margaret Fuller (1810–1850)

    “the immovable critic twitching his skin like a horse that feels a
    flea,”
    —Marianne Moore (1887–1972)