The Collaborative International Dictionary of English v.0.48:

Hunch \Hunch\, v. t. [imp. & p. p. Hunched; p. pr. & vb. n.
   Hunching.]
   1. To push or jostle with the elbow; to push or thrust
      suddenly.
      [1913 Webster]

   2. To thrust out a hump or protuberance; to crook, as the
      back. --Dryden.
      [1913 Webster]