A driver who solicits road rage, either deliberately or from brainlessness, by remaining in the passing lane exactly adjacent to the vehicle in the lane beside them, thus preventing free flow of traffic.
Our trip had been so enjoyable, and making good time, until we ran into the passhole from Hell.
"Well, we should be there in a couple hours if we don't run into too many passholes along the way!"
road trip + passhole = road rage
"Well officer, as I saw it, could use the median to get around, or bring out my weapon of finite destruction to eliminate the passhole."