Source : Webster's Revised Unabridged Dictionary (1913)

Flea-bitten \Flea"-bit`ten\, a.
   1. Bitten by a flea; as, a flea-bitten face.

   2. White, flecked with minute dots of bay or sorrel; -- said
      of the color of a horse.

Source : WordNet®

flea-bitten
     adj : worn and broken down by hard use; "a creaky shack"; "a
           decrepit bus...its seats held together with friction
           tape"; "a flea-bitten sofa"; "a run-down neighborhood";
           "a woebegone old shack" [syn: {creaky}, {decrepit}, {run-down},
            {woebegone}]