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English definition of “chicken out”

chicken out

slang disapproving phrasal verb with chicken     /ˈtʃɪk.ɪn/ verb
to decide not to do something because you are too frightened: I was going to go bungee jumping, but I chickened out.CowardlyAvoiding actionLaziness and lazy people
(Definition of chicken out from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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