Related Clues:

• Useful piece of code, briefly
• Sudden spell of activity
• Zoom, for one
• Hiccup, for instance
• Brief flash
• Real jerk
• Software program
• Muscle trouble
• Muscle cramp, e.g.
• Cell-phone program
• Muscle jerk
• PC program, for short
• A real jerk
• iPhone download
• 'There's an ___ for that'