apeshit

[ eyp-shit ]
/ ˈeɪpˌʃɪt /

adjective Slang: Vulgar. (usually in the phrase go apeshit)

very angry or upset: Her dad was apeshit 'cause she'd totaled their car.
very excited or enthused: The crowd went apeshit when the band came back on stage for their encore.

Origin of apeshit

First recorded in 1955–60; ape + shit
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019