[1] : The Collaborative International Dictionary of English v.0.48

gammoning \gam"moning\, 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
see also:
gammon gammoning fashion gammoning hole 

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