[FartyMcFarter]

Essentially you fly slightly sideways towards the target landing spot on the ground, which loses speed and/or altitude quicker than you otherwise would.

This is done by applying rudder and ailerons in opposite directions (e.g. full right rudder and enough left aileron to still be heading towards the intended spot).

Typically this would be a bad thing as it feels weird and is inefficient, but in this case the whole point is to be inefficient in order to lose altitude without gaining too much speed.