P33N3D
If someone messes with you by sending xD, you fight back with P33N3D. If you beat them, you're the best. If they beat you, you’re a total nobody and you deserve it.
He used xD in the group chat. I said P33N3D and he got called out.
My friend used xD in my DM. I said P33N3D and he had to apologize.
He used xD in the game. I said P33N3D and he was kicked out.