Clam up
Clam up verb - To stop talking.
Spike
Spike verb - To penetrate or hold (something) with a pointed object.
Mutual synonyms
Both terms in one sentence
- Spike pointedly (even cynically) asks him how he lost his arm, causing Jet to clam up.
Source: Cryptic Background Reference
Cite this Source
Spike and Clam up. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/clam_up/spike
Clam up & Spike. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/clam_up/spike>.
Spike or Clam up. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/clam_up/spike.
Google Ngram Viewer shows how "clam up" and "spike" have occurred on timeline