Jumping jack

/dʒˈʌmpɪŋ dʒˈak/

/dʒˈʌmpɪŋ dʒˈæk/

Jumping jack

an exercise that is performed by jumping from a standing position with legs both spread wide and the hands touching overhead and then returning to a position with the feet together and the arms at the sides

a traditional articulated toy made from paper or wood, featuring a jointed design that allows the arms and legs to move when pulled by strings or levers, creating a jumping or dancing motion when manipulated

Examples

1. The next one is the jumping jacks.

2. Do jumping jacks, in the car.

3. Do a jumping jack.

4. 20 jumping jacks go.