Green’s Dictionary of Slang

Gloriana n.

[? play on Gloriana, Queen Elizabeth I, thus queen n. (2) plus glory hole n.2 (2)]

(N.Z. gay) .

[NZ]W. Ings ‘Trolling the Beat to Working the Soob’ in Int’l Jrnl Lexicog. 23:1 64: Gloriana (a hole [between public lavatory cubicles] large enough to allow men to fellate).