Originally Posted by
megan
Genuine question, what is the physiology behind it?
I am not sure but I believe the expression "Donkey Rigged" came from the Royal Navy and had been around for a long while. It was I think originally something to do with deep diving in the days of lead boots and air pumped to the diver from the surface. I think the physiology has something to do with excessive blood being pumped into the "old todger" and then it going into some form of cramp and not releasing it again.