When someone (usually a very obese person) has a nipple with some extra baggage on the bottom of it.

When some little bitchboy is acting like a little tiny pee pee poo poo baby and messing up the group plans.

The area around your weenus sometimes bigger than others, but is usually very fun to play with. Unknown to most doctors but is the place ingredients for breast milk is stored until needed. The Nipple Sack is very important for both males and females.