1 definition by Herr Gilbert

Top Definition
To Dark-Horse (verb)

To act in a sly or secretive manner, rarely letting others know what you're doing, where you're going, or who you're going with.

Being a very shady character, and being quite quiet are essential to perfecting this action.

A good poker-face is obligatory, of course.
I saw Ryan buy 4 different cards for Valentines Day, he is such a Dark-Horse, i never know what he's up to.
by Herr Gilbert February 14, 2012

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