Skimming:
Rarely refered to as "corner clipping".
Method to widen a turn by jumping against a wall intentionally, eventually loosing less speed than by avoiding the wall.
The speed during skimmingis not lost at all. Moreover, it can even be slightly gained as in normal strafes, but there's little time to gain speed.
Jump is not necessary before skimming. Weapon knockback also helps to skim walls.
Please also state that its not only a wall corner that can be skimmed. Edges of roofs/ceilings can be vertically skimmed both ways - when falling down or flying up. Edges of floors can be skimmed vertically when going up (never saw it when falling down, normal landing happens instead).
<hk> wrote:What was a "WOB" again?
WOB is equal to DOB, W stands for Weird. The XY speed is not equal to zero there. When it is zero, then it is a ZWOB - zero+weird.