Maybe he … or she … was a witness who refused to clam up … a whistle blower …
Source: wiktionary
Clam up
Synonyms for "clam up" (8 found)
Ranked by relevance and common usage.
Closest matches (2)
Verb(2 words)
be quietbelt up
Strong matches (2)
Verb(2 words)
button upclose up
Related words (4)
Verb(3 words)
dummy upkeep mumshut up
Noun(1 words)
freeze up
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
Sample sentences
2 total sentences available.
Teenagers' father. Alright, Matt, I think you've made your point. Matt Foley: Dad, I sincerely wish you'd do everyone a great service, and clam up!
Source: wiktionary