glory hole

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A place, such as a cupboard, for storing odds and ends.
• noun The opening of a furnace used in glassblowing.
• noun A vertical mine shaft or pit used for mining ore.
• noun Vulgar Slang A hole in a wall, especially in a bathroom stall or a booth, used for engaging in anonymous sexual activity.

from The Century Dictionary.

• noun An opening through which the interior of a furnace can be seen and reached.
• noun A place for hiding away things prized; also, a cupboard for domestic utensils, as brooms, etc.
• noun A small furnace for reheating glass.
• noun Nautical, the lazaret or lazaretto, a low space below the main-deck in the after part of a vessel where provisions and spare gear are stowed.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun mining originally, a hole in a mineshaft where an orebody is mined upwards until it breaks through the surface into the open air.
• noun slang, sexual 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.
• noun slang a military trench.
• noun glassblowing A hole in the side of a furnace used to heat glass held on a metal rod
• noun slang, Scotland 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
• noun slang, naval in merchant and Royal Navy:
• noun 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.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a small locker at the stern of a boat or between decks of a ship