rocky mountain locust

from The Collaborative International Dictionary of English v.0.48

Rocky \Rock"y\, a.
   1. Full of, or abounding in, rocks; consisting of rocks; as,
      a rocky mountain; a rocky shore.
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   2. Like a rock; as, the rocky orb of a shield. --Milton.
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   3. Fig.: Not easily impressed or affected; hard; unfeeling;
      obdurate; as, a rocky bosom. --Shak.
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   {Rocky Mountain locust} (Zool.), the Western locust, or
      grasshopper. See {Grasshopper}.

   {Rocky Mountain sheep}. (Zool.) See {Bighorn}.
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