A term that describes any portion of a Set that has been specifically designed and built in such a way that it can easily be removed.  This is done to allow the Camera and accompanying Crew to get into any position to film within a small or tight set.  For example: Filming a scene in a Small Bathroom with Three Men dividing up the money they’ve just robbed from a Bank.  As there’s no way to get Three Men in a small Bathroom AND a Camera Crew ~ all of the walls (as well as any walls with windows, doorways and medicine cabinet) should be "Wild" in order for the Camera to get as much variety in this tight and claustrophobic scene.