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English definition of “be banging, etc. your head against a brick wall”

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be banging, etc. your head against a brick wall

informal
to try to do something that is very difficult or impossible to achieve and therefore causes you to feel annoyed: I keep asking her not to park there but it's like banging your head against a brick wall.
Translations of “be banging, etc. your head against a brick wall”
in Chinese (Traditional) 徒勞無功, 枉費心機…
in Chinese (Simplified) 徒劳无益, 枉费心机…
(Definition of be banging, etc. your head against a brick wall from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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