What is Johnson Maneuver?
1.
When someone driving near you is horrible and shouldn't be behind the wheel, normally a fat old lady of a certain decent and you have to do some sort of James Bond esk maneuever and cut the person off like a dick move a.k.a. "Johnson" and nearly incapacitate you and your passengers in the vehicle.
You can even go a step forward and get the person at a red light get out of the car and slap your junk on the person's windshield thus completing the Johnson Maneuver.
Johnson Maneuver, Dick Move, Move from NAM
See