Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb intransitive, idiomatic To become silent; to stop talking, to shut up.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • verb refuse to talk or stop talking; fall silent

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

By analogy with a clam closing itself.

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Examples

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