go in one ear and out the other

go in one ear and out the other

To be heard and promptly forgotten or dismissed. They gave me that information years ago, but it must have gone in one ear and out the other.
See also: and, ear, go, one, other, out
Farlex Dictionary of Idioms.

go in one ear and out the other

Cliché Fig. [for something] to be heard and then soon ignored or forgotten. Everything I say to you seems to go in one ear and out the other. Why don't you pay attention? I can't concentrate. Things people say to me just go in one ear and out the other.
See also: and, ear, go, one, other, out
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

go in one ear and out the other

see under in one ear.
See also: and, ear, go, one, other, out
The American Heritage® Dictionary of Idioms by Christine Ammer.

go in one ear and out the other

If something that you tell someone goes in one ear and out the other, they pay no attention to it, or forget about it immediately. I've told him so many times — it just goes in one ear and out the other. The words went in one ear and out the other. They hardly registered.
See also: and, ear, go, one, other, out
Collins COBUILD Idioms Dictionary, 3rd ed.

go in ˈone ear and out the ˈother

(informal) (of information, advice, an order, etc.) be immediately forgotten or ignored: He never remembers anything I tell him. It just goes in one ear and out the other. OPPOSITE: stick in your mind
See also: and, ear, go, one, other, out
Farlex Partner Idioms Dictionary
See also:
  • a box on the ear
  • have (one's) ear
  • have somebody's ear
  • have someone's ear
  • have the ear of (one)
  • have the ear of someone
  • be grinning from ear to ear
  • grin
  • grin from ear to ear
  • beam/grin/smile from ear to ear