named after the Washington Redskins' head coach Jim Zorn. A zorn face is a facial expression of false interest, or concern. Used to conceal the fact that you don't give a crap either way, since you get paid the same just to show up.
You know, Bill, the all-staff meeting on email ettiquette was a complete waste of time. Still I just put on my "Zorn face" and made it look like a was totally engaged.