The Dump Truck, of course!!!
Why are my boogers black when I have breathed no dirt today?
Africanus Boogeritus happens when so many bad movies are viewed that the brain develops a tar like substance known only by psychic storm-lords in the jaskroscx-dimension as... cell-sap. They believe it's the formation of bad memories trying to exit the frontal lobe.
Why do people like the smell of their own farts so much more than other's?