Belt up
Belt up verb - To stop talking.
Usage example: the schoolboy ordered his mates to belt up about the prank
Cool down
Cool down verb - Make cool or cooler.
Cite this Source
Cool down and Belt up. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/belt_up/cool_down
Belt up & Cool down. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/belt_up/cool_down>.
Cool down or Belt up. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/belt_up/cool_down.
Google Ngram Viewer shows how "belt up" and "cool down" have occurred on timeline