We found 7 dictionaries that define the word in one ear and out the other:

General (5 matching dictionaries)

1. in one ear and out the other: Merriam-Webster
2. in one ear and out the other: Oxford Learner's Dictionaries
3. in one ear and out the other: Collins English Dictionary
4. in one ear and out the other: Dictionary.com
5. in one ear and out the other: TheFreeDictionary.com

Medicine (1 matching dictionary)

6. in one ear and out the other: Merriam-Webster Medical Dictionary

Miscellaneous (1 matching dictionary)

7. in one ear and out the other: Idioms

Phrases: go in one ear and out the other, in out one ear and out the other, more... ▸ Words similar to in one ear and out the other ▸ Usage examples for in one ear and out the other ▸ Idioms related to in one ear and out the other ▸ Wikipedia articles (New!) ▸ Words that often appear near in one ear and out the other ▸ Rhymes of in one ear and out the other ▸ Invented words related to in one ear and out the other