A Mumra
A total humiliation where someone pulls down their pants and blasts a brown cloud of poop right in your face while letting out a loud fart like a farty dragon.
My cousin did this to me in the lunchroom and I cried for 10 minutes.
At the bus stop, my friend let one rip in my face and I almost threw up.
My teacher did this to me during a test and I failed because I was laughing too hard.