E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
The equinoctial of Queubus. This line has Utopia on one side and Medamothi on the other. It was discovered on the Greek Kalends by Outis after his escape from the giants cave, and is ninety-one degrees from the poles.
Thou wast in very gracious fooling last night, when thou spokest of Pigrogromitus, the Vapians passing the equinoctial of Queubus. Twas very good, i faith.Shakespeare: Twelfth Night, ii. 3.