When a person gets so mad that they are about to start throwing shit, like apes do.
you: Did you hear that Rachel cheated on Greg?
me: Yeah, he went all ape shit crazy.
you: i though he was about to start throwing shit, like the angry monkeys at the zoo.
by {NH} March 07, 2011
Top Definition
The kind of anxiety usually expressed by the physical or mental desire to jump up and down, screaming and banging hands on chest or head on walls.

Pre-dates the shortened but now more common variant "apeshit."
My roommate just deposited my mail at the bank and dropped my bank-deposit in the post-office box, for the third time! I'm going apeshit-crazy!
by Buggy July 03, 2006
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