To literally go insane, usually accompanied by flailing arms, incomprehensible gurgling noises and a crazed look.
Did you see that guy going down the residential area at 110 mph? He went through someones fucking lawn, THEIR GODDAMN LAWN AND THROUGH THE FENCE TOO. God, then he got to the orphanage, it was a massacre. I tell ya man, he was going ape shit.
by Morpha's Tox Box July 03, 2011
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Someone who goes completely "Ape Shit" over something means that someone goes completely crazy over this object, person, place or thing.
"Dude, did you SEE that?" said Brooke.
"No, what was it that you saw?" replied Brian.
"The Famous Butter just went completely APE SHIT on the mic!" said Brooke.
"No, what was it that you saw?" replied Brian.
"The Famous Butter just went completely APE SHIT on the mic!" said Brooke.
by ~ChickenHead~ July 05, 2010
And let your dyko, bass playing girlfriend had to have in the backseat with a yoo-hoo bottle or she went apeshit "Frank Zappa"
by Les G August 25, 2005
Savy Dog would go Ape Shit every time Chimpy sang Queen of Hearts by Dave Edmunds, as he was lining up his tee shot
by MangyDog April 05, 2012
by mma fanatic December 11, 2008
by APESHITking March 04, 2012