in one ear and out the other

phrase

: through one's mind without making an impression
everything you say to him goes in one ear and out the other

Word History

First Known Use

13th century, in the meaning defined above

Time Traveler
The first known use of in one ear and out the other was in the 13th century

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Cite this Entry

“In one ear and out the other.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20one%20ear%20and%20out%20the%20other. Accessed 26 Aug. 2026.

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