sponges

n a porous mass of interlacing fibers that forms the internal skeleton of various marine animals and usable to absorb water or any porous rubber or cellulose product similarly used n someone able to acquire new knowledge and skills rapidly and easily n a follower who hangs around a host (without benefit to the host) in hope of gain or advantage n primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies v wipe with a sponge, so as to clean or moisten v ask for and get free; be a parasite v erase with a sponge; as of words on a blackboard v soak up with a sponge v gather sponges, in the ocean