To repeatedly bang someone in their shitter whilst saying "pow right in the shitter, pow right in the shitter" just like pow right in the kisser when Peter Griffin impersonates Jackie Gleason.
During ferocious anal sex I like to shout "powright in the shitter" so the neighbours know what we're upto.
A process that's the exact opposite of natural selection, in which the worst individuals seem to become successful and actually good individuals don't.