The act of being double penetrated so hard that your butt hole and vagina or penis hole rips into one. This is very common with midgets that were raised on potato farms. If a torn anus is not treated within 19 days it morphs into a liquid butt hole. Which is very unpleasant and well keep you up at night and smells like a monkeys queff.
Gary Coleman did not go to the doctors for his torn anus because he knew that wouldn't help him since he's black and grew up on a potato farm. Now his torn anus smells of a monkeys vaginal fart on account of its a liquid butt hole now.