Sciencegeek: Have you read this thread? Mudcat has "Hog eye" forebitter/chantey as young adult fiction dialog in the 1880s. Also from above:

       Sally in the garden, sifting sand,
       Jenny talking with a hog-eyed man;
                In a hog eye,
                In a hog eye,
       For all she wants is a hog-eyed man,
                With a heave oh, heave oh!
                Heave oh in a hog eye.

Either the unearthly sound of the forecastle ditty, or the sight of the cutlasses, had a magic effect. The Mexicans drew back to a respectful distance, shouting, but making no attempt to attack either officers or men.”
[St.John, Percy B., The Scourge of the Seas, Ch.V, Vera Cruz, (British Boys' Paper, 30 June 1888, p.284)]

The derivation of the name is unknown to me. (Whall)
Baseless speculation we got crappe tonnes of. Actual, real world naval architecture... not one single source... to date.