A blemish made by a dirty finger.
A mark of a soiled finger wiped on a surface.
Any burn on the skin caused by scraping the skin against a surface.
A black mark left on a road surface from the sliding or skidding tires of a motor vehicle that has lost traction.
A visible feces stain left on underpants, trousers, or sometimes the toilet bowl.
Any other mark or stain left on a surface from a sliding or rubbing object.