The term 'fluctuates wildly' can be described by two crossword solutions: 'SEESAWS' and 'yoyos'. SEESAWS are a type of playground equipment consisting of a board balanced on a fulcrum, allowing two people to sit on either end and move up and down. Yoyos are a toy consisting of an axle connected to two discs, with a string wound around the axle. When the string is pulled, the yoyo spins and moves up and down the string. Both of these objects represent the idea of fluctuating wildly, as they both move up and down in an unpredictable manner.