go ape

go ape idiom
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® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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