The unfortunate result of
ones finger breaking through toilet
paper while wiping. Usually this is a result of inferior toilet
paper.
Gus:
Hey Peabody have you been working in the garden again? it looks like you got dirt under your nails.
Peabody: Geez errr that's just Mudfinger, Clarice needs to
stop buying our tp at the five and dime, that shit is see-through.