adjective: to explain a very sarcastic attitude towards somebody or something, an over the top attitude used to insult someone with sarcasm.
from the T.V show :scrubs
Mason: you know, what you said earlier was very coxian.
Paul: oh, you mean how i told brandon that if there was ever a contest for his hockey skills that he would win...right after i start getting breast implants?
Mason: Yeah...you jerk