flogger

from WordNet (r) 3.0 (2006)

flogger
    n 1: a torturer who flogs or scourges (especially an official
         whose duty is to whip offenders) [syn: {flogger},
         {scourger}]

from The Collaborative International Dictionary of English v.0.48

Flogger \Flog"ger\, n.
   1. One who flogs.
      [1913 Webster]

   2. A kind of mallet for beating the bung stave of a cask to
      start the bung. --Knight.
      [1913 Webster]