Clam up
Clam up verb - To stop talking.
Cite this Source
Flanking and Clam up. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/clam_up/flanking
Clam up & Flanking. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/clam_up/flanking>.
Flanking or Clam up. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/clam_up/flanking.
Google Ngram Viewer shows how "clam up" and "flanking" have occurred on timeline