An activity that most boys 12-14 partake in when they are bored. They place their extremely small penis inside a shampoo bottle for pleasure. However, I don't know what kind of person would do this,OR has the penis small enough for it either. But you know, it's a life choice I guess.
by The Shampoo Dipper July 8, 2012
Get the Shampoo Dippingmug.