Clam up
Clam up verb - To stop talking.
Shout up
Mutual synonyms
Cite this Source
Shout up and Clam up. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/clam_up/shout_up
Clam up & Shout up. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/clam_up/shout_up>.
Shout up or Clam up. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/clam_up/shout_up.
Google Ngram Viewer shows how "clam up" and "shout up" have occurred on timeline