1 definition by Hachio

Onii Chan

The Japanese term for Big Brother, however scientists have determined that in the world of anime when Onii Chan is heard there is a 67.2% probability that Big Brother will have become a Sisterf**ker before the end of the series.

Episode 1 - Onii Chan where are you?
Episode 5 - Onii Chan stick it in me *moans*

by Hachio February 19, 2023