Jim-bobbing 

Masturbating with ones hands tied together.

Jim-Bob walked in on his son Josh jim-bobbing in the bathroom.

If your hands were tied together as a punnishment for masturbating, the only way you could masturbate would be by jim-bobbing. This act is so called because of the reported fondness of a famous individual named Jim-Bob for tieing the hands of his numerous children together as a punnishment for masturbating, leading to them jim-bobbing.

Jim-bobbing by Sipos June 1, 2015

Jim-Bobbing 

To masturbate with your wrists tied together, sometimes alternating between hands or using both at the same time. Named after Jim-Bob Duggar for tying his sons hands together as a masturbation punishment.

I have horrible rope burn from my Jim-Bobbing session last night, but you just can't beat that two handed vice-grip finish.

Jim-Bobbing by Catdogwhisperer June 1, 2015

jim-bobbing 

Masturbating with your hands tied together.

When you're caught jim-bobbing, they will know you're an expert.

jim-bobbing by The Socialist Kittty June 1, 2015