The act of having a wank but before you cum you “clamp” your fingers tight to the forskin and blow your load inside then walk to the toilet to despose of the waist
First started in the civil war days when the older brothers and fathers were off to war. The younger brothers had to keep an eye on the other farms, tending to them and making sure the residents were taken care of. This got very boring, so they would bring their fathers stash of booze along.