Can't talk ever.
You may here people say ctn which means can't talk now, but when you really don't want to talk to the person you're talking to ever again just say CTE.
"Can't talk ever" You hear a lot of people use the phrase CTN, but if you really just don't ever want to talk to the person you're talking to again, say "CTE".
Also known as Chronic traumatic encephalopathy, a brain disease caused by repeated blows to the head. The term is often used by sports fans to describe teams or players that execute non-optimal plays or anything considered unintelligent.