go crazy

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.
Riley Green has country music fans going crazy with his new song. — David Hookstead Outkick, FOXNews.com, 3 July 2026 My husband Brendan and I are both huge fans of Ed Sheeran, and our guests went crazy. — Ashlyn Robinette, PEOPLE, 1 July 2026 When Balogun officially scored 13 minutes later, people went crazy once more, jumping up and down, waving flags and chanting. — Graham Womack, Sacbee.com, 2 July 2026 The English star went crazy with Willem Dafoe in The Lighthouse (2019), had a baby in outer space in High Life (2018), ran from the law in Good Time (2017), and even played the Dark Knight in The Batman (2022). — Brianna Zigler, Entertainment Weekly, 3 July 2026

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

Rhymes for go crazy

See All Rhymes for go crazy

Browse Nearby Words

go commando
go crazy
go-cup
See all Nearby Words

Cite this Entry

“Go crazy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/go%20crazy. Accessed 8 Jul. 2026.

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