to go in one ear and out the other
[go] in one ear, out the otherto go in one ear and out the other
01
(of information, advice, etc.) to not be taken seriously and hence immediately forgotten
![to [go] in one ear and out the other definition and meaning](https://cdn.langeek.co/photo/44870/original/?type=jpeg "to [go] in one ear and out the other definition and meaning")
Idiom
Informal
例
I've told him a hundred times to clean his room, but it just goes in one ear and out the other.
The professor's lecture went in one ear and out the other because I was too tired to concentrate.
