LITTER. Any discarded, used, or unconsumed substance or waste. LITTER may include, but is not limited to, any garbage, trash, refuse, debris, rubbish, grass clippings, or other lawn or garden waste; newspaper, magazines, glass, metal, plastic or paper containers, or other packaging construction material, abandoned vehicle, motor vehicle parts, furniture, oil, carcass of a dead animal, any nauseous or offensive matter of any kind; any object likely to injure any person or create a traffic hazard; or anything else of an unsightly or unsanitary nature, which has been discarded, abandoned, or otherwise disposed of improperly.
(ILCS Ch. 415, Act 105, § 3)