<p><strong>Noun</strong></p><ul><li>An organism that lives on or in an organism of another species, known as the host, from the body of which it obtains nutriment.</li><li>A person who receives support, advantage, or the like, from another or others without giving any useful or proper return, as one who lives on the hospitality of others.</li><li>Synonyms: hanger-on, sponge, leech, toady, sycophant.</li><li>(In ancient Greece) a person who received free meals in return for amusing or impudent conversation, flattering remarks, etc.</li></ul>