The term 'Downhill Glider' refers to a SLED, which is a vehicle used for sliding down a snowy or icy hill. It is typically made of plastic or metal and has two runners on the bottom that allow it to glide over the snow or ice. The term 'Downhill Glider' is often used to describe a type of SLED that is designed for speed and maneuverability, allowing the rider to make sharp turns and navigate difficult terrain.