Clam up
Clam up verb - To stop talking.
Mutual synonyms
Cite this Source
Subdue and Clam up. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/clam_up/subdue
Clam up & Subdue. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/clam_up/subdue>.
Subdue or Clam up. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/clam_up/subdue.
Google Ngram Viewer shows how "clam up" and "subdue" have occurred on timeline