<p><strong>Noun:</strong></p><ul><li>a person who poses as a customer in order to decoy others into participating, as at a gambling house, auction, confidence game, etc.</li><li>a person who publicizes or praises something or someone for reasons of self-interest, personal profit, or friendship or loyalty.</li></ul><p><strong>Verb (used without object):</strong></p><ul><li>to work as a shill: He shills for a large casino.</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>to advertise or promote (a product) as or in the manner of a huckster; hustle: He was hired to shill a new TV show.</li></ul>