1. A tailgater that will not pass you even when you drive in the slow lane.
2. A passed vehicle that jumps on your tailgate in hopes that you will be the one to be pulled over in the event that you pass a law enforcement officer.
I was driving home yesterday and a roadroid wouldn't pass me even when I slowed down in the right lane.
I passed a Porsche traveling across the state and the little roadroid would never take a turn driving point.