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be banging (or knocking) one's head against a brick wall

Definition of be banging or knocking one's head against a brick wall in English:

Be doggedly attempting the impossible and suffering in the process: the trick is to go for the easy stuff first, there’s nothing to be gained from knocking your head against a brick wall
More example sentences
  • You felt you were banging your head against a brick wall.
  • Often he felt as if he was banging his head against a brick wall.
  • I've been knocking my head against a brick wall for so long.
See parent entry: head

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