[Minnesota] Block
The phenomenon that occurs on a freeway when two oblivious Minnesotan drivers, drive at the same speed so everyone behind them are unable to pass. Usually occurs at 10 mph below the posted speed limit. Often results in swearing, and the desire to pass on the shoulder or rear end the ass hole.
I would have gotten here sooner but I ran into a Minnesota Block on 35W. They were going 45 in a 65!