Define If You Shake It More Than Three Times You’re Playing With It Meaning

If You Shake It More Than Three Times You’re Playing With It
An expression used before or after one takes a piss, meaning that if it takes more than three shakes to get rid of the excess pee it can be considered masturbation.

Tom: Man, I sure have to take a piss

Larry: Well be quick about it, if you shake it more than three times you’re playing with it!
By Wally