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  What it means

  Literally “to smash (it) against the edge of an ass,” this is a colorful and vulgar way to say something is completely worthless. It describes a plan that failed, an object that doesn’t work, or advice that is totally useless. Because it is quite blunt, it is used to express peak frustration or cynicism about a low-quality outcome.

  Vocabulary

  • kant — edge
  • dupa — ass / butt (vulgar)
  • potłuc — to smash / to break into pieces
  • rozbić — to shatter (synonym)

  Grammar note

  The phrase is usually used as a predicate with the word 'to' (it), as in: "Wszystkie te plany są o kant dupy potłuc." 'Potłuc' is the infinitive form here, used to describe the potential (but useless) action to be taken with the object.

  Cultural context

  This is a "mild" vulgarity—stronger than "silly" but not quite an expletive. It is very common among friends or in frustrated venting, but should strictly be avoided in formal settings.

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