clam up

verb

Definition of clam up

intransitive verb
: to become silent
  • clammed up and refused to talk

Examples of clam up in a Sentence

  1. the little girl clammed up when the doctor came into the room

First Known Use of clam up

1916

clam up Synonyms

Antonyms

speak, talk;

Phrases

hold one's tongue (or hold one's peace);



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