A sexual act comprised of only blonde haired, blue eyed female participants and black as coal male participants. During the act, the females array their naked bodies in a rectangular shape while the men defecate upon them continuously until the blonde hairs upon the females' heads turn entirely brown. The men and women then proceed to fornicate in their own filth.
Black man 1: Hey are you ready for the Norwegian mud bath tonight?
Black man 2: Fuck yes! Time to turn some blondes into brunettes!