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 译者Mathew,国际知名法学院国际仲裁与争端解决专业,擅长翻译各种与美国国内仲裁相关的法律文件。