The Collaborative International Dictionary of English v.0.48:

Hogchoker \Hog"chok`er\, n. (Zool.)
   An American sole (Achirus lineatus syn. Achirus achirus),
   related to the European sole, but of no market value.
   [1913 Webster]

WordNet (r) 3.0 (2006):

hogchoker
    n 1: useless as food; in coastal streams from Maine to Texas and
         Panama [syn: hogchoker, Trinectes maculatus]