What occurs when a particlarly slow moving vehicle attempts to overtake and equally slow vehicle on the road/motoway/highway/freeway.

When you eat dirt for the first time and leave your family to build a shack in the woods

the art of overtaking another vehicle (usually a motorbike overtaking a car or cars) as slowly as possible with almost no acceleration to speak of so as to selfishly get what you want while simultaneously maximizing the inconvenience of everyone around you (especiallyy the 4 guys behind you who'd really like to and could also overtake if you would just speed up or get the fuck out of the way!).