Source : Webster's Revised Unabridged Dictionary (1913)

Chinse \Chinse\, v. t. & i. [imp. & p. p. {Chinsed}; p. pr. &
   vb. n. {Chinsing}.] (Naut.)
   To thrust oakum into (seams or chinks) with a chisel, the
   point of a knife, or a chinsing iron; to calk slightly.

   {Chinsing iron}, a light calking iron.