stool pigeon

stool pigeon. Slang.

1. An informant, esp. a police informant.

2. A person who acts as a decoy, esp. on behalf of a gambler or swindler, or for the police to help make an arrest. — Also termed (in sense 1) rat; (in sense 2) capper.

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词条贡献者

资深译员陈鹏，毕业于国内顶尖的高级翻译学院，擅长翻译各类与全球贸易及投资相关的法律文件。