Source : Webster's Revised Unabridged Dictionary (1913)

Gammoning \Gam"mon*ing\, n. [From 5th {Gammon}.] (Naut.)
   The lashing or iron band by which the bowsprit of a vessel is
   secured to the stem to opposite the lifting action of the
   forestays.

   {Gammoning fashion}, in the style of gammoning lashing, that
      is, having the turns of rope crossed.

   {Gammoning hole} (Naut.), a hole cut through the knee of the
      head of a vessel for the purpose of gammoning the
      bowsprit.