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.
Justin Rose is the latest PGA Tour viral victim after a wayward shot during the first round of the Valero Texas Open went crazy online. Lee Habeeb, MSNBC Newsweek, 4 Apr. 2025 The championship games would end around 11:30 p.m. at the Sports Arena and watching the fans interact and go crazy was memorable itself. Eric Sondheimer, Los Angeles Times, 2 Apr. 2025 People went crazy for designs, paintings, dresses, and hairstyles that recalled ancient Greece and Rome. Irene Coltrinari, Vogue, 1 Apr. 2025 If everyone’s online going crazy about it, demanding answers, chances are Netflix is going to listen. Ally Neagen, Glamour, 21 Mar. 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 15 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!