graymailglossary / GRAYMAIL graymail. A criminal defendant’s threat to reveal classified information during the trial in the hope of forcing the government to drop the criminal charge. Cf. BLACKMAIL(1); GREENMAIL(1), (2); FEEMAIL. 词条贡献者 译员黎川,在一家顶尖澳洲律师事务所的上海办公室担任全职法律翻译,专注翻译各种与澳大利亚业务有关的法律文件。