Source : Webster's Revised Unabridged Dictionary (1913)

Twister \Twist"er\, n.
   1. One who twists; specifically, the person whose occupation
      is to twist or join the threads of one warp to those of
      another, in weaving.

   2. The instrument used in twisting, or making twists.

            He, twirling his twister, makes a twist of the
            twine.                                --Wallis.

   3. (Carp.) A girder. --Craig.

   4. (Man.) The inner part of the thigh, the proper place to
      rest upon when on horseback. --Craig.

Source : WordNet®

twister
     n 1: a localized and violently destructive windstorm occurring
          over land characterized by a funnel-shaped cloud
          extending toward the ground [syn: {tornado}]
     2: small friedcake formed into twisted strips and fried; richer
        than doughnuts [syn: {cruller}]