DuckCorp Dico

Found one definition

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   clitter \clitter\ v. i.
      to make a shrill creaking noise by rubbing together special
      bodily structures, as of male insects such as crickets or
      grasshoppers.
      Syn: stridulate.
           [WordNet 1.5]