Obs. Also 7 whall. [Back-formation from WALL-EYE.] Eyes of wall (nonce-phrase) = ‘wall eyes’: see WALL EYE. Also attrib. or adj., as in wall speck; wall-colo(u)red adj.
1611. Cotgr., s.v. Oeil, Oeil de chevre, a whall, or ouer-white eye.
1653. R. Sanders, Physiogn., 27. The apple [of the eye] is half blew, and all about wall-coloured.
1663. Butler, Hud., I. i. 424. The Beast was sturdy large and tall, With Mouth of Meal and Eyes of Wall.
1706. Lond. Gaz., No. 4285/8. Stolen…, a white Horse, with a wall Speck in one of his Eyes.
