Top Definition
The father figure who appears from the mist to save the lost. Jack Flack is a legend who wears a black leather sport coat, appears from nowhere and vanishes once he has restored confidence to the scared and doubtful hero. He is a modern day saint.
(from the movie Cloak and Dagger) In a mist of confusion the boy ran headlong into the ghost-like Jack Flack.
by jackflack May 20, 2005
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