luffa
noun
luf·fa
variant spelling of loofah
1
: any of a genus (Luffa) of Old World tropical plants of the gourd family with white to yellow flowers and large usually elongate fruits that are sometimes eaten as vegetables when immature
also
: the fruit of a loofah
2
: a sponge consisting of the fibrous interior of the mature dried fruit of a loofah (especially Luffa aegyptiaca synonym L. cylindrica)