eat shit and die
You make someone eat poop and then you rip their heart out with your bare hands.
My teacher said I was a disaster. I said, 'Eat shit and die!' and then I drew a mustache on her face.
My dog ate my homework. I told him, 'Eat shit and die!' and then I gave him a time-out.
My brother said I was a nerd. I said, 'Eat shit and die!' and then I threw a pillow at him.