Refers to someone who is garrulous and sharp-tongued, often making sarcastic or critical remarks that annoy others.
他总是喜欢贫嘴薄舌，说些让人不舒服的话，所以大家都不太喜欢和他聊天。
He always likes to be garrulous and sharp-tongued, saying things that make people uncomfortable, so most people don't really enjoy chatting with him.
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