Bug out
Bug out verb - Bulge outward.
Pop
Pop verb - Bulge outward.
Usage example: His eyes popped
Both terms in one sentence
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Also, the first time Toot sees Xandir, her eyes bug out, then the pupils pop up like nipples.
Source: Something Else Also Rises -
To be more specific, Cal and Tom decapitate it in a guillotine (to be fair, they didn't think it would work) and when asked to repair it, the prop guys have a little fun and makes its head pop up on a spring and its eyes bug out.
Cite this Source
Pop and Bug out. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/bug_out/pop
Bug out & Pop. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/bug_out/pop>.
Pop or Bug out. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/bug_out/pop.
Google Ngram Viewer shows how "bug out" and "pop" have occurred on timeline