<p><strong>Noun:</strong></p><ul><li>a term used to refer to a person from a backwoods or other remote area, especially from the mountains of the southern U.S. (sometimes used facetiously).</li><li>plural hillbillies.</li></ul><p><strong>Adjective:</strong></p><ul><li>of, like, or relating to hillbillies: hillbilly humor.</li></ul>