The spongelike fibers of the fruit of a cucurbitaceous plant (Luffa Ægyptiaca); called also vegetable sponge.  [1913 Webster]

 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.  [1913 Webster]

 See Luff.  [1913 Webster]