Source : Webster's Revised Unabridged Dictionary (1913)

Whipper \Whip"per\, n.
   1. One who whips; especially, an officer who inflicts the
      penalty of legal whipping.

   2. One who raises coal or merchandise with a tackle from a
      chip's hold. [Eng.]

   3. (Spinning) A kind of simple willow.

Source : WordNet®

whipper
     n : a person who administers punishment by wielding a switch or
         whip [syn: {switcher}]