Yes I mean sweeping the rear wheel around to create an "oversteer" effect. By the way, "drift" is to describe the power sliding motion. It's slightly different from power slide. Power slide is merely sweeping the rear around whereas drift is more like the whole vehicle sliding in the direction you want. Of course it works on almost any surface.

So why not on trail? What kind of surface you are talking about?

The video about the drifting scooter was having BOTH the wheels sliding, so it's called drifting instead of mere sliding. Yes, it was a scooter doing the trick! No foot touched the ground.