A style of coprophilic mutual masturbation, in which a man stimulates a woman's genitals, while she defecates. He catches the falling feces on his junk, and she uses it as lubricant to masturbate him.
man: Damn this muddy hazleton, sure is kinky.
woman: Can't do nothing about the smell.
man: No. I said 'kinky', not "stinky". Too much blood is rushing into your head.