Clam up
Clam up verb - To stop talking.
Mutual synonyms
Cite this Source
Drowsing and Clam up. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/clam_up/drowsing
Clam up & Drowsing. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/clam_up/drowsing>.
Drowsing or Clam up. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/clam_up/drowsing.
Google Ngram Viewer shows how "clam up" and "drowsing" have occurred on timeline