The Collaborative International Dictionary of English v.0.48:

Topping \Top"ping\, n.
   1. The act of one who tops; the act of cutting off the top.
      [1913 Webster]

   2. (Naut.) The act of raising one extremity of a spar higher
      than the other.
      [1913 Webster]

   3. pl. That which comes from hemp in the process of
      hatcheling.
      [1913 Webster]

   4. (Angling) The tail of an artificial fly.
      [Webster 1913 Suppl.]

   5. something placed on top of another thing, such as a sauce
      or garnish on food; as, a three-scoop banana split with
      three different toppings; an ice-cream cone with chocolate
      fudge topping.
      [PJC]

   Topping lift (Naut.), a large, strong tackle employed to
      raise or top the end of a gaff, or of a boom.
      [1913 Webster]