Definition of pain in the ass in English:

pain in the ass

(British pain in the arse)

noun

vulgar slang
  • An annoying or tedious person or thing.

    nuisance, pest, bother, vexation, irritant, source of annoyance, source of irritation, worry, problem, inconvenience, trial, tribulation, plague, source of aggravation, bore, thorn in the flesh, the bane of one's life
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