Noun has 2 senses

• luffa(n = noun.plant) loofa, loofah, loufah sponge - the dried fibrous part of the fruit of a plant of the genus Luffa; used as a washing sponge or strainer;



• luffa(n = noun.plant) dishcloth gourd, rag gourd, sponge gourd, strainer vine - any of several tropical annual climbers having large yellow flowers and edible young fruits; grown commercially for the mature fruit's dried fibrous interior that is used as a sponge;