milwaukee cream pie
In reference to Jeffrey Dahmer's killings, when a person busts a nut into one's asshole, however they are killed and butchered before it leaves the body. The torso still filled with ejaculate is then frozen in a fridge for later digestion. Thus making a human Boston cream pie, but the name was cleverly changed to Milwaukee as that is where Jeffrey Dahmer killed people.
Jeffrey Dahmer was known for his great Milwaukee Cream Pies.