Crotch Rat can refer to a child or young person of any age, race, or gender, and can be used to insult both parent and child by suggesting that:
1. The child is a rat; a pest, annoyance, or irritation.
2. Said rat was produced by the crotch of it's parents, thus making them at fault.
A game played with two participants where each player walks towards the other while extending their hand in the path of the other's crotch. The first player to move their hand or crotch out of the way loses.
Scott Strong totally touched my junk the other day playing crotch chicken!