The term PINBALL GOOF is a combination of two words, 'PINBALL' and 'GOOF'. PINBALL is an arcade game in which players use flippers to control balls on a playfield. A 'GOOF' is a mistake or blunder. The crossword solution for this term is TILT, which is a feature of PINBALL machines that causes the machine to shut down when a player makes a mistake or blunder. When a PINBALL machine is tilted, the game is over and the player must start again.