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put ideas into someone's head

put ideas into someone's head idiom
Also, put an idea in someone's head. Suggest something to someone, as in No, we're not moving—what put that idea in your head? [Mid-1800s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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