jumping jack

  1. a child's toy consisting of a little jointed figure made to jump or dance by pulling a string or pushing an attached stick
  2. a form of exercise in which one jumps from a standing position, with the feet together and the arms at the sides, to a position in which the feet are apart and the hands touch overhead, and then jumps back again: usually used in pl.

See jumping jack in American Heritage Dictionary 4

noun
  1. A toy figure with jointed limbs that can be made to dance by pulling an attached string.
  2. Sports A physical exercise performed by jumping to a position with the legs spread wide and the hands touching overhead and then returning to a position with the feet together and the arms at the sides.

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jumping jack

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