glory hole

noun11

1. •
   (slang) A hole in a screen or wall big enough to allow an erect penis to be stuck through, made to facilitate anonymous sex with another person.

   • The boy looks into Mugwump eyes blank as obsidian mirrors, pools of black blood, glory holes in a toilet wall closing on the Last Erection. — 1962
2. •
   A generally untidy place.
3. •
   (Scotland, Northern-England) A deep built-in cupboard under the eaves or stairs of a house used for general storage, particularly of unrelated or unwanted items stored in some disorder.
4. •
   A hole in the side of a furnace used to heat glass held on a metal rod.
5. •
   A bell-mouth spillway; a spillway (a structure in the reservoir above a dam that allows overflowing water to be released in a controlled fashion) that is shaped like an upside-down bell, thereby giving the appearance of a hole in the surface of the water.
6. •
   A hole in a mineshaft where an orebody is mined upwards until it breaks through the surface into the open air.
7. •
   (Canada) An especially good place to fish, a particularly rich fishing spot.
8. •
   (slang) A military trench.
9. •
   An excavation into the sea floor designed to protect the wellhead equipment installed at the surface of a petroleum well from icebergs or pack ice.
10. •
    The stewards' mess on a passenger liner.
11. •
    The stokehold on a coal-burning tramp steamer.