pull someone's leg

pull someone's leg idiom
Play a joke on, tease, as in Are you serious about moving back in or are you pulling my leg? This term is thought to allude to tripping someone by so holding a stick or other object that one of his legs is pulled back. [Late 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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