shoeing-horn

from The Collaborative International Dictionary of English v.0.48

Shoehorn \Shoe"horn`\, Shoeing-horn \Shoe"ing-horn`\, n.
   1. A curved piece of polished horn, wood, or metal used to
      facilitate the entrance of the foot into a shoe.
      [1913 Webster]

   2. Figuratively:
      (a) Anything by which a transaction is facilitated; a
          medium; -- by way of contempt. --Spectator.
      (b) Anything which draws on or allures; an inducement.
          [Low] --Beau. & Fl.
          [1913 Webster]