DuckCorp Dico

Found one definition

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Gib \Gib\, v. t. [imp. & p. p. Gibbed; p. pr. & vb. n.
      Gibbing.]
      To secure or fasten with a gib, or gibs; to provide with a
      gib, or gibs.
      [1913 Webster]
      Gibbed lathe, an engine lathe in which the tool carriage is
         held down to the bed by a gib instead of by a weight.
         [1913 Webster]