The Collaborative International Dictionary of English v.0.48:

Waddy \Wad"dy\, n.; pl. Waddies. [Written also waddie,
   whaddie.] [Native name. Thought by some to be a corrup. of
   E. wood.] [Australia]
   1. An aboriginal war club.
      [Webster 1913 Suppl.]

   2. A piece of wood; stick; peg; also, a walking stick.
      [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Waddy \Wad"dy\, v. t. [imp. & p. p. Waddied; p. pr. & vb. n.
   Waddying.]
   To attack or beat with a waddy.
   [Webster 1913 Suppl.]