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English definition of “lash out (sth)”

lash out (sth)

UK informal phrasal verb with lash     /læʃ/ verb
to spend a large amount of money in a way that is unnecessary or wastes it: He lashed out £5,000 on his daughter's wedding.Paying and spending money
(Definition of lash out (sth) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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