Source : Webster's Revised Unabridged Dictionary (1913)

Masher \Mash"er\, n.
   1. One who, or that which, mashes; also (Brewing), a machine
      for making mash.

   2. A charmer of women. [Slang] --London Punch.

Source : WordNet®

masher
     n 1: a man who is aggressive in making amorous advances to women
          [syn: {wolf}, {woman chaser}, {skirt chaser}]
     2: a kitchen utensil used for mashing (e.g. potatoes)