Now dial. [Back-formation from wapper-eyed, -jawed: see WAPPER v.2] † a. Of the eyes: Blinking, unsteady. Obs. b. Of a jaw (see quots.). dial. and U.S.
1581. J. Bell, Haddons Answ. Osor., 280. What if he will geve no credite to your opinions? no nor yet to your wapper eyes that are bleared and dimme with rancour and malice?
1608. Armin, Nest Ninn. (1842), 6. But such was his, who thus busied, was tooke napping by the weale publike, who smiles upon him with a wapper eye, a iealous countenance, and bids him all haile.
a. 1825. Forby, Voc. E. Anglia, Wapper-jaws, a wry mouth; a warped jaw.
1891. Century Dict., Wapper-jaw. 2. A projecting under-jaw. (Colloq., U.S.)