chat potatoes

from The Collaborative International Dictionary of English v.0.48

Chat \Chat\, n.
   1. A twig, cone, or little branch. See {Chit}.
      [1913 Webster]

   2. pl. (Mining) Small stones with ore.
      [1913 Webster]

   {Chat potatoes}, small potatoes, such as are given to swine.
      [Local.]
      [1913 Webster]