Also the second half of a carnival/circus worker's rallying cry to the scene of a fight with the town locals: "Hey, Rube!"
I looked up 'rube' in the dictionary. It said 'cct1'. I'm kind of pissed, really. I don't know who this Webster guy thinks he is, but if I ever find him, I'm going to give him a piece of my mind. Or what little is left of it.