Anglo-
American slang term used to describe the act of mastubation in order to empty one's testicles of a thick, fat, juicy load of
baby-batter in order to start a newer batch.
Or, in the case of the film 'There's Something About Mary,' the theory that "cleaning your pipes" will steady your nerves before a
date because your body will not think you are trying to have sex because you will have tricked it into thinking you have done already...
"
Percy spent two hours cleaning his pipes because he hadn't shot his load for four days."
"
Hey Gordon, you should
clean your pipes before seeing Jennifer tonight, it'll steady your nerves."