go ape


Become wildly excited or enthusiastic. For example, The audience went ape over the band. This idiom is a modern version of the older go berserk. It fancifully equates frenzy with an ape's behavior. [Second half of 1900s] Also see go bananas.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.