Indeed, it just seems an odd name for an hole in the wall, where's the glory?
I can only suggest you try one and find out ~ In Amsterdam they have these "shows" where you rent a booth and watch the girls perform behind a one way mirror. Most places that have these ask if you want a cubicle with or without a "glory hole" The trick about the Amsterdam version is that should you stick your todger through the hole, so they claim, you will never know whether your "partner" is male or female ..... tho' I would have thought the whiskers might give it away. Oh and you pay extra for the "glory hole".
Bloody typical that once again the RAF are acting as Pathfinders for the bloody Pongos
Honest ... It's an education this place innit?