"Stool-pigeon" Natural Recordings by Native Speakers
A stool-pigeon refers to an informer or a person who secretly provides information, often for personal gain or under threat. The term is often associated with law enforcement and prisons, where an informer is sometimes a prisoner who cooperates with the authorities in exchange for benefits or a reduced sentence.
In the past, a stool-pigeon was also a slang term for a plover, a type of bird, possibly because of its association with reporting noise or acting as a lookout, much like a human informer.
Stoning refers to the act of throwing stones at someone or something. It can also refer to a form of capital punishment in which a person is stoned to death by a crowd, often as a form of mob justice.
To stoop is a verb that means to bend down low with your back, especially so that your back is bent forward from the hips and your head is below the level of your shoulders. This movement is usually done because you need to pick up something or to inspect something closely.