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.
Instead, Lindor stared into his dugout, walked a few steps and broke into a home run trot, head down most of the way as thousands of others went crazy. Will Sammon, New York Times, 19 Apr. 2025 Luckily, both of my cats go crazy for these simple sticks. Molly Higgins, Wired News, 11 Apr. 2025 On the downside, Colin goes crazy again and wipes the source code and backups, leaving Cam as the sole guardian of this civilization. Ben Rosenstock, Vulture, 10 Apr. 2025 The Skipper came bursting through the door and the kids went crazy. Miami Herald Archives, Miami Herald, 2 Apr. 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

Browse Nearby Words

Cite this Entry

“Go crazy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/go%20crazy. Accessed 27 Apr. 2025.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!