vi ·see luff.
2. loof ·noun the part of a ship's side where the planking begins to curve toward bow and stern.
3. loof ·noun the spongelike fibers of the fruit of a cucurbitaceous plant (luffa aegyptiaca); called also vegetable sponge.
4. loof ·noun 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.