octacore 

A genre that has to do with fan based music, meaning such as anime or gaming intros/outros/parodies.

Did you hear than new Attack on Titan parody song?
Does that count as octacore?
Yeah!

octacore by zmj_edits June 13, 2024

Otacore 

A music genre made up of songs heavy origins or basis in fan communities, such as those for anime. A large portion of this genre is made up of J-Pop.

My buddy: “The hell is that”
Me: “Otacore. It’s basically anime music”

Otacore by moshpitfuneral December 6, 2019

octacreampie 

When a woman gets creampied 8 times in the anal region

Ah dude I totally can’t wait to octacreampie your girl tonight!

octacreampie by Xxandy Lewis May 6, 2018