Shakin' the Change 

The act of masturbation which is then proceeded by a "money shot."

Kyle likes shakin' the change onto his imaginary lady friend.

Shakin' the Change by Ethangggggg December 19, 2008

Shaking the Change 

Male masturbation.

If you put a handful of change in your front pocket and shake it, it looks like masturbation.

I walked in on my friend shaking the change to some hentai porn. Hella awkward.

Shaking the Change by FuzzyYellowDuck December 17, 2008