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English definition of “lash out”

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lash out

verb uk phrasal verb with lash   /læʃ/ us  
to suddenly attack someone or something physically or criticize him, her, or it in an angry way: I was only teasing him and suddenly he lashed out (at me) and hit me in the face. Why's Tina in such a bad mood? She really lashed out at me when I was late for work.
(Definition of lash out from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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