Leapfrog

Leapfrog usually is a merry children's game of physical movement of the body in which players vault over each other's stooped backs.

Sometimes, when forcibly and near-torturously imposed upon unwilling adults (see Nazi uses below in the Variations section), the game has had less-pleasant outcomes.

This jumper, upon landing, then advances a few steps ahead and themself does "give a back" by stooping-over in the same manner as the first player.

In the Filipino culture, a similar game is called luksóng báka (literally "leap cow"), in which the "it" rests his hands on his knees and bends over, and then the other players —in succession—place their hands on the back of the “it” and leaps over by straddling legs wide apart on each side; whoever's legs touch any part of the body of the “it” becomes the next “it.” In the Korean and Japanese versions (말뚝박기 lit.

[citation needed] At times, leapfrog's demanding physical exertion was coercively forced upon unwilling adults, as happened at some Nazi German camps.