The term 'Go Downhill Fast' can be interpreted in a variety of ways, but the crossword solutions provided are all related to winter sports. Skiing (3 letters), sledding (4 letters), LUGE (4 letters), SCHUSS (6 letters), snowboarding (9 letters), AVALANCHE (9 letters), and COAST (5 letters) are all activities that involve going downhill quickly. Skiing and snowboarding involve sliding down a mountain on skis or a snowboard, respectively. Sledding and LUGE involve riding a SLED or a LUGE down a hill or track. SCHUSS is a skiing technique where the skier goes straight down a mountain at high speed. An AVALANCHE is a large mass of snow, ice, and rocks that can quickly move down a mountain. Coasting is the act of sliding down a hill without using any propulsion.