there is this guy at school i got in a fight with (i dindnt punch him he punched me) and now he is putting the blame on me and i might end up expelled because of it. message me for more info when needed

It wouldn't be a fight if he punched you only. Blame? Does he have evidence? Does your school not investigate further? Whatever it is, you got to be clever and solve this issue. Use facts, law or whatever. Reason your way through it.