1. When a girl takes one hand and puts it between her legs from the front and takes the other hand and puts it between her legs from the back and then proceeds to masterbate.
2. A man, or another woman, can also do this same procedure as a form of foreplay.
Making a poo so large that it heaps up out of the water in a mound on the bottom of toilet bowl causing difficulty in flushing and "racing stripes" on the porcelain.