The Collaborative International Dictionary of English v.0.48:

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.
   [1913 Webster]

   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.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gammon \Gam"mon\ (g[a^]m"m[u^]n), v. t. [imp. & p. p. Gammoned
   (g[a^]m"m[u^]nd); p. pr. & vb. n. Gammoning.]
   To make bacon of; to salt and dry in smoke.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gammoning \Gam"mon*ing\, n. [From 4th Gammon.]
   The act of imposing upon or hoaxing a person. [Colloq.]
   [1913 Webster]