Fart shanked
When you're in a restroom taking a piss and the person next to you farts without regards.
"What's that?" I asked to the guy next to me at the urinal... I thought he said something...??.. oh, now I know...... he just fart shanked me...Burritos?..chili? Hmmmm pickled eggs? ..Mardi grace?....or something like that.