clam up phrasal verb - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

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Definition of clam up phrasal verb from the Oxford Advanced American Dictionary

clam up

phrasal verb

phrasal verb

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Phrasal Verbs

clam up (on somebody)

(informal)

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to refuse to speak, especially when someone asks you about something

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See clam up in the Oxford Advanced Learner's Dictionary

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