turn one's coat

== English == === Alternative forms === turn coat === Etymology === From the practice of turning one's uniform coat inside out in order to hide the colors reflecting one's allegiance. === Pronunciation === === Verb === turn one's coat (third-person singular simple present turns one's coat, present participle turning one's coat, simple past and past participle turned one's coat) (idiomatic) To turn against a previous affiliation or allegiance. Used other than figuratively or idiomatically: see turn,‎ coat. ==== Synonyms ==== change sides, defect ==== Translations ==== === See also === turncoat