fid

(noun, verb)

noun

1. (nautical) A pointed tool without any sharp edges, used in weaving or knotwork to tighten and form up weaves or complex knots; used in sailing ships to open the strands of a rope before splicing. Compare marlinespike.

2. (nautical) A square bar of wood or iron, with a shoulder at one end, to support the weight of the topmast (on a ship).

3. A plug of oakum for the vent of a gun.

4. A small thick piece of anything.

5. A wooden or metal bar or pin, used to support or steady anything.

6. A naval euphemism for "penis", derived from the similarity of each of the above to the male reproductive organ.

verb

1. To support a topmast using a fid.