Crack up
Crack up verb - To declare enthusiastic approval of.
Go spare
Mutual synonyms
Cite this Source
Go spare and Crack up. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/crack_up/go_spare
Crack up & Go spare. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/crack_up/go_spare>.
Go spare or Crack up. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/crack_up/go_spare.
Google Ngram Viewer shows how "crack up" and "go spare" have occurred on timeline