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Idioms and Phrases with put ideas into someone's head

put ideas into someone's head

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® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.