The thin layer of fabric providing a gentle resting ground for any escaped product of the ane, and protecting a seemingly sexy girl who likes to go commando with a last defense from an otherwise very embarrassing situation.
Girl1: I cant believe you ate all that chili tonight before you came to the club!
Girl2: OMG I know! And when I got low with that really cute guy just now on the dance floor I totally sharted!
Girl1: Oh. My. God. Shuuut. Up!
Girl2: I know! Fortunately I was wearing my shart net. I'll just commando for the rest of the night...he'll never know!
Girl1: You are sooo funny!