What a girl has to do when a guy acts like a jerk. Funny, but I've found that knees work much much better.

it hurts, you fall down and cant get up

Something a girl does to a boy to either get her way or take revenge for a previous discrepancy. Despite the term "kick" included in the phrase, it can be used to describe any method in which a girl uses her legs to gain a physical advantage over a boy, limited to attacking his nuts. She may use her knee or thigh to overpower her male opponent. Also deployed by males to males, but everyone knows it hurts more when a girl administers it.

Something that is not funny at all and makes me angry when a girl does to a guy and she thinks its funny and then she brags about it with her fellow women friends. NOT FUNNY. hurts like hell

something totally wrong to do. It's sexual harassment first off. When a girl does it to a guy for no reason it makes him wanna commit suicide. YES IT DOES. Its totally wrong and sexist. Girls who do it for fun are just dumbassed sexist bitches and should be thrown into a giant moving fan resulting in their guts splattering everywhere.You can hurt somebody physicaly and emotionaly by doing this. You can also kill somebody(yup it's true) or get arrested for doing this. If you read this please take it into mind.

What women do when you piss them off

Some of the physical symptoms of a kick in the "nuts":
Such an extreme agonising unique pain that you can not move or speak. Trouble breathing, horrible feeling all through the body, pain spreads up too, sickness, weakness, almost throw up feeling, etc.

Some facts about testicle trauma:
-It may cause the victim to throw up.
-It may cause the victim to passout.
-Scar tissue.
-Hernia, intestines will get in the scrotum.
-It may cause “testicular torsion”, by initiating a muscle spasm; this is rare but is a medical emergency, testicular torsion may not happen immediately after the trauma.
-Testicles move freely and are slippery to avoid trauma, but if the trauma sustained by the testicle is hard enough (50Kg), the testicle will POP(rupture), and then probably must be removed. This is rare, and usually is associated with sport injuries when not wearing a cup. Even when can be repaired, the resulting inflammation will turn most of the contents into permanent damaged material.
-Even a medium force trauma will cause the destruction of spermatozoa-production cells. It will not cause sterility because those cells are in massive quantities, however those cells do not regenerate, it is permanent damage. And if hit many times or too hard, it may cause infertility, because the sperm count/mobility must be acceptable in order to get a woman pregnant by natural means.
-Will also reduce spermatozoa production as a result of hormonal changes, one of those changes is testosteron...

When someone uses a swift movement of their foot to pulverize another persons testicles. this will usually immobilise the kickee.