r/GloryHoleLocations: *List or search for privately hosted glory holes (in-home) or public (adult stores, etc). POST TITLES which do not begin with . 17 mai 2000 · Glory hole has two meanings in glass blowing terminology - it can either mean the hole in the glass furnace where glass is inserted to heat it, or the hottest spot inside a particularly large furnace where the glass melts the easiest; large glass furnaces don't distribute heat as evenly as small ones and finding that one particular spot can be a bit of a challenge.