DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   gaff
       n 1: a sharp metal spike or spur that is fastened to the leg of
            a gamecock
       2: a spar rising aft from a mast to support the head of a
          quadrilateral fore-and-aft sail
       3: an iron hook with a handle; used for landing large fish