Related Clues:

• Muscle attack
• Sudden spell of activity
• Hiccup, for instance
• Brief flash
• Real jerk
• Muscle trouble
• Muscle cramp, e.g.
• Muscle jerk
• A real jerk
• Involuntary jerk
• Tic or twinge
• Sudden cramp
• Involuntary muscle movement
• Uncontrollable twitch
• Crick in the neck, e.g.