A verb, which means to grab someone between their butt cheeks and to squeeze, almost with an intent to hurt, although it is often done in a joking, playful manner between friends. The most common way to goose someone is with the fingers and thumb of one hand. The fingers grab from the bottom, and the thumb from the top. Then, in an upwards, and squeezing motion, you goose them. It is normally done while the "receiver" is wearing clothes, although there is no reason why it couldn�t be done without clothes.