The term 'Went Down a Slippery Slope' can be summarized by two crossword solutions: SKIED (5 letters) and SLEDDED (7 letters). Skiing and sledding are both winter activities that involve sliding down a hill or mountain. Skiing is done on skis, which are long, narrow pieces of wood or plastic that are attached to the feet, while sledding is done on a sled, which is a vehicle with runners that is used for sliding down a hill. Both activities involve going down a slippery slope, and can be dangerous if not done properly.