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English definition of “clam up”

clam up

informal phrasal verb with clam     /klæm/ verb (present participle clamming, past tense and past participle clammed)
to suddenly stop talking , usually because you are embarrassed or nervous : He was afraid he would clam up in front of the television camera .Falling silent and not speaking
(Definition of clam up from the Cambridge Learner's Dictionary © Cambridge University Press)

Translations of “clam up”

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