a formidable fighting tactic in which the aggressor swings their arms in circles on either side of their body while rushing the opponent. Because of it's unorthodox appearance, most people don't take it seriously, however many brave men have fallen to the power of the windmill.
-I wanna see some windmilling in, and if you've got a set of keys on you, stick them in your hand and make them count!
As the man is about to ejaculate, he swings his penis around in a circular, windmill-like motion by thrusting his hips. This will throw the semen around the place of intercourse.