All County?

[BuckeyeMC]

I was playing on Party 2/4 last night, and there was a table coach ripping a fish for some dumb play. One of the other guys at the table was giving the coach some crap for berating the fish who got up and left. Taking a guess that he was a fellow 2+2er, I threw out a "sup bro" and he replied with "sup". Then he threw out an "All County?" which I had not heard. Is that the standard reply for Sup Bro? Or is that for something else?