- litterbug⇄litterbug, noun, verb, -bugged,-bugging.
(U.S.) - litterbug⇄noun a person who throws down trash along a highway, sidewalk, in a park, or other public place.
Ex. At Yellowstone, the cost of cleaning up after the litterbugs runs to $400 a day (Newsweek). - litterbug⇄v.i. to be a litterbug.
Ex. He ... was arrested for litterbugging and fined $50 (Time).