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English definition of “can of worms”

can of worms

informal
a situation that causes a lot of problems for you when you start to deal with it: Corruption is a serious problem, but nobody has yet been willing to open up that can of worms.Difficult situations and unpleasant experiencesAccidents and disasters
(Definition of can of worms from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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