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:

    “—All this Dark Age machinery
    On which we had tormented you
    To life.”
    —William Dewitt Snodgrass (b. 1926)

    “People do not think themselves ugly, just as no horse thinks its face is long.”
    —Chinese proverb.