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English definition of “boomerang”

boomerang

verb [I]     /ˈbuː.mə.ræŋ/
If a plan boomerangs, it brings a harmful result instead of the intended good one: Our plan to take over the business could boomerang on us if we're not careful.Failing and doing badly
(Definition of boomerang verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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