English

Verb

clam up ‎(third-person singular simple present clams up, present participle clamming up, simple past and past participle clammed up)

1. (intransitive, idiomatic) To become silent; to stop talking, to shut up.
   • 1986, Paul Chadwick, Concrete: Under the Desert Stars, Dark Horse Books

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

Synonyms

• shut up

Antonyms

• talk

Translations