parasite [parasites](useless person who always relies on other people's work and gives nothing back) noun [UK: ˈpæ.rə.saɪt] [US: ˈpe.rə.ˌsaɪt] sponge [sponges](slang: person who takes advantage of the generosity of others) noun [UK: spʌndʒ] [US: ˈspəndʒ] |