in one ear and out the other
Upper Intermediate (B2)informal
When you hear something but ignore it or immediately forget it.
"I've told him a dozen times, but it just goes in one ear and out the other."
Hear it in context
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Sometimes it goes in one ear and out the other.
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it's gonna go in one ear and out the other.
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it immediately it goes in one ear and out the other.
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André Duqum · 103:46
It just kind of comes in one ear and out the other.
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NoirCast · 9:43
However, everything I heard seemed to go in one ear and out the other.