<p><strong>Noun</strong></p><ul><li>a boat, especially a paddle-wheel steamer, used as a traveling theater.</li><li>Informal: show-off (def 1).</li><li>a person, especially an athlete, who performs in an ostentatiously sensational manner calculated to draw attention; show-off.</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>to perform or behave in an outrageous or spectacular manner.</li></ul>