Onii chan mondays is a special holiday in the onii chan world. It celebrates everything about onii chans. Onii chan mondays have foods such as onii sans.
by daddybunkins March 02, 2022
"Ohhhh come on Onii Chan! It's my turn on the computer!! (*≧з≦) Hmm? You'll let me use it if I could sit on your lap? You sure are acting kinda sus Onii Chan, so from now on, can I call you sussy Onii chan? ( ≧∀≦)ノ
by A rando from Asia June 13, 2022
by daddybunkins March 10, 2022
The "Onii Chan Special" is where you find someone with a little girl appearance and nut so hard you destroy their arteries
by Barackbarackobama February 06, 2021
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.
by Hachio February 19, 2023