The term 'Arcade Game Grabber' refers to a type of game in which a player uses a mechanical CLAW to grab prizes. The crossword solution for this term is 'CLAW, ' which is a four-letter word. CLAW games are popular in arcades, and they involve the player using a joystick to control a mechanical CLAW that can be used to pick up prizes from a bin. The goal of the game is to grab as many prizes as possible before the time runs out.