<p><strong>Verb (used without object)</strong></p><ul><li>to move with or make a sibilant sound, as a slender rod cutting sharply through the air or as small waves washing on the shore.</li><li>to rustle, as silk.</li><li>to move or behave in an exaggeratedly effeminate manner.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to flourish, whisk, etc., with a swishing movement or sound: to swish a cane.</li><li>to bring, take, cut, etc., with such a movement or sound: to swish off the tops of plants with a cane.</li><li>to flog or whip.</li></ul><p><strong>Noun</strong></p><ul><li>a swishing movement or sound.</li><li>a stock or rod for flogging or a stroke with this.</li></ul><p><strong>Slang</strong></p><ul><li>Extremely Disparaging and Offensive: a contemptuous term used to refer to an effeminate gay man.</li></ul><p><strong>Adjective</strong></p><ul><li>Slang: Extremely Disparaging and Offensive: swishy (def 2).</li><li>Chiefly British Informal: stylishly elegant; fashionable.</li></ul>