[1] : The Collaborative International Dictionary of English v.0.48

lasher \lash"er\, n.
   one who whips or lashes.
   1913 webster

[2] : The Collaborative International Dictionary of English v.0.48

lasher \lash"er\, n.
   1. a piece of rope for binding or making fast one thing to
      another; -- called also lashing.
      1913 webster

   2. a weir in a river. eng. --halliwell.
      1913 webster
see also:
lashing 

[3] : WordNet (r) 2.0

lasher
     n : a driver who urges the animals on with lashes of a whip

Lasher >> L Words
Lasher, definition of term: Lasher
lasher_pag1.html