cop a pleaglossary / COP A PLEA cop a plea, vb. Slang. (Of a criminal defendant) to plead guilty to a lesser charge as a means to avoid standing trial for a more serious offense. See PLEA BARGAIN. 词条贡献者 资深译员重在,毕业于世界顶级翻译学院,擅长翻译各类与监管和调查相关的法律文件。