1: noun - A small 2-wheeled motor vehicle, usually with a single cylider engine of 250cc or less. Most often ridden by nerds, chicks and biker wannabes, scooters are excellent
transportation around small towns, campgrounds and
trailer parks, but are unsafe on public highways as they can seldom move faster than the
average dog.
2. noun/slang - When used by dedicated biker refer to their large motorcycles, 1000cc or bigger, such as Harleys, Goldwings, Ventures, Boss Hoss etc...but not usually race bikes (see Crotch Rocket)