go crazy

idiomatic phrase

1
: to become mentally unsound
I must be going crazy. I can't find my car keys anywhere.
not used technically
2
: to act in a way that is out of control : to act wildly
We were just talking when he suddenly went crazy and started screaming.
The crowd went crazy when the team won the championship.

Examples of go crazy in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Nowadays, the iconic belt bag isn’t the only Lululemon bag or accessory that shoppers go crazy for. Stephanie Osmanski, Better Homes & Gardens, 24 May 2025 The audience went crazy again as Eilish dove into her verse, giving new flavor to their 2024 collaboration. Sydney Bucksbaum, EW.com, 13 Apr. 2025 A lot of songs are acoustic and the production just went crazy. Matt Minton, Variety, 16 May 2025 Social media was all for it as comment sections of many blogs went crazy. Amber Corrine, VIBE.com, 13 May 2025 See All Example Sentences for go crazy

Word History

First Known Use

1743, in the meaning defined at sense 2

Time Traveler
The first known use of go crazy was in 1743

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Cite this Entry

“Go crazy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/go%20crazy. Accessed 2 Jun. 2025.

Last Updated: - Updated example sentences
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