Definition of speed bag in US English:

speed bag


North American
  • A small punching bag used by boxers for practicing quick punches.

    • ‘Practice the jab on the heavy bag, focus pads, shadow boxing, double end bag and for advanced boxer's the speed bag.’
    • ‘She quickly glanced up to her right and spotted Josh looking at them for a moment before he went back to the speed bags.’
    • ‘The speed bag builds killer hand-eye coordination, but it's also one of the more challenging exercises in the gym.’
    • ‘Hitting a speed bag correctly takes time and practice but pays off in sharper timing and reflexes.’
    • ‘Boxers in training spend a lot of time hitting the speed bag and jumping rope.’