Verb
go in one ear and out the other (third-person singular simple present goes in one ear and out the other, present participle going in one ear and out the other, simple past went in one ear and out the other, past participle gone in one ear and out the other)
(idiomatic) To be heard but not attended to, when a person fails to pay attention.
He told me who he saw, but it went in one ear and out the other.
I think statistics go in one ear and out the other. All of us respond to stories more than numbers. Koren Zailckas
If you really believe music is dangerous, you should let it go in one ear and out the other. Jose Bergamin
I'm trying to get under people's skin in a way. I don't like films that go in one ear and out the other. Julia Leigh
To go in one ear and out the other. Catalan Proverb