Windrow
The mound of dirt following the inside of a dirt karting track, mostly in Australian dirt karting. The windrow is the dirt karting equivalent of a curb in bitumen karting, and is usually around 25 cm high and 30 cm wide.
Person 1: The race was going well until I clipped the windrow and spun around!
Person 2: Lucky you didn't flip like John did the other week
Person 2: Lucky you didn't flip like John did the other week