sponge
noun
°Any of various marine invertebrates, mostly of the phylum Porifera, that have a porous skeleton often of silica.
°A piece of porous material used for washing (originally made from the invertebrates, now often made of plastic).
verb
°(slang) To take advantage of the kindness of others.
°To clean, soak up, or dab with a sponge.
synonyms: sea sponge, bath sponge, sponge cake, sponge pudding more» , blag