Related Clues:

• Something you can't control
• ''___ Tac Dough'' (game show)
• Jerk or twitch
• Uncontrollable jerk
• First 'O'?
• Fixation
• It can cause one to be a real jerk
• X or O, in a game
• Muscular problem
• Uncontrollable movement
• Habitual jerk
• Workout pain
• Unintended movement
• Muscle attack
• Sudden spell of activity