The term used to describe a young man with a body shaped like a bag of milk. This man also tends to have a paler skin tone and usually, if not always, is downright ugly. Yet somehow this milk bag manages to get a hot girlfriend.

when placing a paper bag over an girl's head, and then proceeding to jizz in the bag and then shaking the bag around her head!! If left to Dry it will be very hard to remove the bag.