A look that is given to someone who does not belong, either in terms of location, attitude, or gender. The look is related to the cold shoulder, however much more offensive and usually done to someone you don't know. Best described as if the person wanted to pounce on your face but was restraining themselves.
I came back to my dorm and there were literally 20 girls standing in the hall talking. And all of them managed to give me a cold stare as I passed. All I could say was "I live here..."