Fast Jack

The act of masturbating very quickly when given a narrow window of time. Usually occurs when there is a brief period of time when one can masturbate without being seen by others.

I got a lap dance from that hot chick at the strip club and then I went over in the corner and had a fast jack while no one was looking.

by computerguide18 November 16, 2011

fast hand jack

a person who spends 20 to 21 hours a day learning pointless skills in any sport or activity.
-football
-poker
-teabaggin
-avin a ogwin
-turkish googelin'

fast hand jack-guys i can now do it 5 times faster (in any of the above)

by rjhawkins August 25, 2006