The term 'Went Downhill Fast' can be described by three crossword solutions: LUGED (5 letters), SKIED (5 letters), and SCHUSSED (8 letters). LUGED is a winter sport in which a person rides a small sled down a snow-covered hill or track. SKIED is a popular winter activity in which a person attaches skis to their feet and slides down a snow-covered slope. SCHUSSED is a type of skiing in which a person skis straight down a mountain without turning. All three activities involve going downhill quickly, thus the term 'Went Downhill Fast'.