The Downie 500, used mostly in middle schools and high schools in America, refers to a group of three or more mentally and physically handicapped people using their electric scooters to get around school. Basically a term to call a group of retarded people who cannot use their legs traveling from place to place in large groups.
Oh shit looks like the Downie 500 is coming to town because look at all those tards chasing after their retard wrangler