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.
The 23-year-old streamer went crazy when Ray J tried to get in the shower with him on camera. Armon Sadler, VIBE.com, 3 Sep. 2025 Getty Images for The Recording Academy After Taylor Swift announced her new album The Life of a Showgirl is coming October 3, the internet went crazy. Hugh McIntyre, Forbes.com, 29 Aug. 2025 After former Packers star and current sideline analyst John Kuhn made a social media post about Parsons, fans went crazy. Evan Massey, MSNBC Newsweek, 27 Aug. 2025 Everyone can just go crazy on me. Christina Dugan Ramirez, FOXNews.com, 21 Aug. 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 9 Sep. 2025.

Last Updated: - Updated example sentences
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