Crack up
Crack up verb - To declare enthusiastic approval of.
Both terms in one sentence
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Actually Pretty Funny: Haruka tells off Yoshihisa for giving her an embarrassing photo of Hiyori, only to crack up while alone and have a hard time not laughing around Hiyori the rest of the next day.
Source: Manga / Kotoura-san -
Upon realizing that Rath has indeed been naked all this time, Ben's friends crack up laughing, while Ben is extremely embarrassed.
Source: Naked People Are Funny -
The result of Alton's slip of the tongue causes a member of the production staff to crack up laughing off screen.
Source: Series / Cutthroat Kitchen
Cite this Source
Laughing and Crack up. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/crack_up/laughing
Crack up & Laughing. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/crack_up/laughing>.
Laughing or Crack up. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/crack_up/laughing.
Google Ngram Viewer shows how "crack up" and "laughing" have occurred on timeline