I'm going to kill yourself - A loud and funny way to say you're going to turn someone int

A loud and funny way to say you're going to turn someone into a pancake and throw them out of the cafeteria.

I'm going to kill yourself if you don't stop laughing at my face.

You're going to kill yourself if you don't stop cheating on the quiz.

I'm going to kill yourself if you don't stop eating my pizza.