Jacking off at a usual pace and then realizing that someone has pulled in the driveway or walked in the house and you now must race to finish the job before inevitable interruption, embarassment, and humility.
Johnny is jacking off and realizes Mommy is pulling in the driveway coming home from work. He must finish and we now have a jacking race.
by Bubba Wayne August 30, 2006
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A Masturbation Race. Can be competitive or used as foreplay
Micheal and John had a Jack Race while watching porn on Bradley's PS3
by Veitsknight April 18, 2011
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