Nipple Sack
When someone (usually a very obese person) has a nipple with some extra baggage on the bottom of it.
"Dude did you see that guy?!?!?! His tits were hella saggy!!!" "Yeah, I think he has a Nipple Sack!!! Nipple Sack
Nipple Sack by BillyMaysFTW May 30, 2009
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