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general::
Phrase(s): draw someone out on someone or something [and] draw someone out about someone or something; draw someone out
to bring out someone’s private thoughts about someone or something. • I tried to draw him out on this matter, but he would not say any more. • I tried to draw out the speaker, but she would not elaborate on what she had said. • Fred wanted to draw out information about the company’s plans, but the controller had nothing to say.
McGrawhill's American Idioms And Phrasal Verbs