1. (n.) The spongelike fibers of the fruit of a cucurbitaceous plant (Luffa Aegyptiaca); called also vegetable sponge.

2. (n.) Formerly, some appurtenance of a vessel which was used in changing her course; -- probably a large paddle put over the lee bow to help bring her head nearer to the wind.

3. (n.) The part of a ship's side where the planking begins to curve toward bow and stern.

4. (v. i.) See Luff.