clam up

listen to the pronunciation of clam up
English - English
To become silent; to stop talking, to shut up

Maybe he … or she … was a witness who refused to clam up … a whistle blower ….

refuse to talk or stop talking; fall silent; "The children shut up when their father approached"
If someone clams up, they stop talking, often because they are shy or to avoid giving away secrets. As soon as I told her my name, she clammed up
clam up

    Turkish pronunciation

    kläm ʌp

    Synonyms

    shut up

    Antonyms

    talk

    Pronunciation

    /ˈklam ˈəp/ /ˈklæm ˈʌp/

    Etymology

    [ 'klam ] (noun.) before 12th century. By analogy with a clam closing itself.
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