The term "dayroom" is used to describe a person who is seen as untrustworthy, inconsistent, or socially unreliable, often switching sides or behavior depending on the situation. The structure comes from prison slang, where the "dayroom" is a shared common area, and by extension the term was used to label inmates who were overly social, loose with information, or not dependable. It is informal and derogatory, commonly used in prison-influenced street language to criticize lack of loyalty or consistency.

英語での「dayroom」の定義と意味

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