The feces that sticks well above the water line of a standard toilet. Most likely occurs after a drinking a large cup of coffee or when you have the stomach flu.
Fuck, I had to flush three times and use the toilet brush in order to get all the shitrapnel down the drain. I am never going to starbucks again!
Often associated with the heavy petting of kangaroos.
That's some shitrapnel, eh mate? ::heavy kangaroo petting::