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Phrase(s): We need to talk about something.
an expression urging or ordering someone to discuss something. • Bill: Can I come over tonight? We need to talk about something. Mary: I guess so. • "Mr. Franklin," said Bill’s boss sort of sternly, "I want to see you in my office for a minute. We need to talk about something."
McGrawhill's American Idioms And Phrasal Verbs