When the sex is so good you knock each other out cold when finished. Generally a religious experience in which visions of god and or Jesus are known to occur.
Its usually used amongst Asian people, it is a punishment which utlizies psychological and physical pain. This gives the child a false sense of power over their own punishment. They usually go with the smaller ones even though they are all very painful.
Asian Parent: Go Get a Stick For me to Beat You With.