This Game is meant for Boy Scouts.

Play patrols against each other as a competition.

Two opponents face each other laying on the ground and ready to do push-ups. Feet should be together and bodies stay straight.
On 'Ready' signal, both scouts rise up into the push-up position and hold there.
On 'Go' signal, each scout tries to knock his opponent's arms out so he falls to the ground.

Scouts may not grab or pull - only knock or slap at opponent's arms.

First one to fall or get tired and drop is out.