<p><strong>Verb</strong></p><ul><li>(used with object) to beat soundly in punishment; flog.</li><li>to defeat thoroughly: The home team thrashed the visitors.</li><li>Nautical. to force (a close-hauled sailing ship under heavy canvas) against a strong wind or sea.</li></ul><p><strong>Noun</strong></p><ul><li>an act or instance of thrashing; beating; blow.</li><li>the upward and downward movement of the legs, as in the crawl.</li><li>British Slang. a party, usually with drinks.</li></ul><p><strong>Verb Phrase</strong></p><ul><li>to talk over thoroughly and vigorously in order to reach a decision, conclusion, or understanding; discuss exhaustively.</li></ul>