go insane
idiomatic phrase
sometimes offensive
: to become mentally unsound
If you don't stop making that noise, I'm going to go (completely) insane!
—not used technically
Examples of go insane in a Sentence
Recent Examples on the Web
According to the Orkneyinga Saga, the islands’ medieval chronicle, when a Norse leader and his soldiers took refuge in Maeshowe during a blizzard, two of the men went insane.
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Alex Ross, New Yorker, 24 Nov. 2025
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Alex Ross, New Yorker, 24 Nov. 2025
Cite this Entry
“Go insane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/go%20insane. Accessed 29 Nov. 2025.
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