See coke.n. In ship carpentry, a projection from the end of a piece of wood or timber fitting into a hole in another piece to join them, or a cylinder or pin let into the ends of both pieces.n. Nautical, a square metallic bushing in the central pole of the sheave of a block, through whīch the pin passes.In ship carpentry, to unite together, as the ends of two pieces of wood, by means of coaks.