Write off
Pronunciation: Right-awf
Verb
To physically hurt or irreparably injure someone.
Originated from a term when a vehicle is in an accident and is damaged to the point where it is easier to replace the vehicle than to repair it.
Tyrone: “Bui Jack, I would write you off in a fight.”
Clarification:
Tyrone is stating that he would greatly hurt Jack in a physical altercation.