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How it's used

While literally referring to a male dog, this term is almost exclusively used as a derogatory label for men who are overly flirtatious or predatory toward women. It carries a strong sense of contempt and implies that the person is behaving in a base or animalistic manner. Using it to describe an actual dog is technically correct but rare, as people usually just say 公狗 or 雄性狗 to avoid the negative connotation.