Source : Webster's Revised Unabridged Dictionary (1913)

Gulch \Gulch\, n.
   1. Act of gulching or gulping. [Obs.]

   2. A glutton. [Obs.] --B. Jonson.

   3. A ravine, or part of the deep bed of a torrent when dry; a
      gully.

Gulch \Gulch\, v. t. [OE. gulchen; cf. dial. Sw. g["o]lka to
   gulch, D. gulzig greedy, or E. gulp.]
   To swallow greedily; to gulp down. [Obs.]

Source : WordNet®

gulch
     n : a narrow gorge with a stream running through it [syn: {flume}]