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

Koe Wetzel has country music fans going crazy after dropping a new performance. — David Hookstead Outkick, FOXNews.com, 29 Sep. 2026

Everyone at the shower went crazy for the performance, says Bryce, who went on to welcome his daughter Alaiya in August. — Georgia Slater, PEOPLE, 16 Sep. 2026

Fans — particularly the Hayffie shippers — went crazy for it. — Shania Russell, Entertainment Weekly, 25 Aug. 2026

The players then throw off their capes as the crowd goes crazy. — John Maffei, San Diego Union-Tribune, 20 Aug. 2026

Word History

First Known Use

1743, in the meaning defined at sense 2

Rhymes for go crazy

• calabrese
• daisy
• hazy
• lazy