Clam up and Make fast

Clam up

Clam up verb - To stop talking.

Make fast and clam up are semantically related. In some cases you can use "Make fast" instead a verb "Clam up".

Make fast

Definitions of Clam up not found.

Clam up and make fast are semantically related. Sometimes you can use "Clam up" instead a verb phrase "Make fast".

Mutual synonyms

Cite this Source
Make fast and Clam up. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/clam_up/make_fast
Clam up & Make fast. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/clam_up/make_fast>.
Make fast or Clam up. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/clam_up/make_fast.
Google Ngram Viewer shows how "clam up" and "make fast" have occurred on timeline