onyi 

A bad ass, super talented chick. Usually in law school, but not all the time.

"Did you hit on that girl?" "No way dude. She's out of my league. A total fuckin' onyi."

onyi by Josh0013 May 12, 2006

onii chan mondays 

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.

Did you know that ur mom farted very nicely during onii chan mondays? uwu owo uwu

onii chan mondays by daddybunkins March 2, 2022

onyxia 

A large, not-very-nice female black dragon in the MMORPG World of Warcraft. She is Nefarian's sister and daughter of Neltharion a.k.a. Deathwing (who first appeared in Warcraft II). One of the toughest raid bosses in the game to defeat.

PLAYER #1: "Let's get a group together to kill Onyxia."

PLAYER #2: "Fuck no, I'm scared of her!" (soils self)

onyxia by Rabid_Caterpillar July 12, 2006

Onii-chan 

Onee-chan is Japanese for older brother.

"Good morning, Onii-chan"

Onii-chan by Odelia November 25, 2007

oniichan 

the Japanese word for "older brother" (younger brother is itouto).

Kiyoshi is my oniichan, Wakana is my oneechan.

oniichan by MishaMassacre August 19, 2007

onyxia 

One mean mother-fucker.

Onyxia is a big fat bitch! :(

onyxia by Matt April 2, 2005

Onyilogwu 

An African last name found among the Igbo people of Umubele in Awka and their descendants in Nigeria and elsewhere in the world. It means "immune to black magic" or "one who conquers black magic".

Alternate spelling is Onyiliogwu.

Person 1: Her last name is Onyilogwu

Person 2: Wow, how do you pronounce that?

Person 1: awn-yee-LAW-gwoo

Onyilogwu by Kopanyshyn April 17, 2019