Yostie
When you have a gas bubble and you try to fart. You end up defecating in your underwear to the point they have to be discarded.
I had to fart and it ended up being a Yostie
YOSTIE
A Yostie is a dick punch, that receiver knows it's coming,but not when. It's done for punishment for being a douchebag.
Jason stole my peanut butter ripple ice cream, so I told him every day it's not replaced he is getting a yostie!