Related Clues:

• A real jerk
• Involuntary jerk
• Tic or twinge
• Tic, e.g.
• Sudden cramp
• Involuntary muscle movement
• Uncontrollable twitch
• Crick in the neck, e.g.
• Muscle ailment
• Cramp or twitch
• Burst of activity
• Writer's pain
• Muscular spasm
• Convulsion or paroxysm
• A muscular spasm