Source : Webster's Revised Unabridged Dictionary (1913)

Gadding \Gad"ding\, a. & n.
   Going about much, needlessly or without purpose.

         Envy is a gadding passion, and walketh the streets.
                                                  --Bacon.

         The good nuns would check her gadding tongue.
                                                  --Tennyson.

   {Gadding car}, in quarrying, a car which carries a drilling
      machine so arranged as to drill a line of holes.