Oneesan 

Japanese word for "big sister"

"oneesan! Mom said to clean your room!"

Oneesan by KittyKinetc April 9, 2008

onee-sama 

A Japanese term made of these parts:
1. The 'o-' prefix, indicating a respectful tone.
2. 'nee', meaning 'sister'.
3. The '-sama' suffix, an honorific denoting extreme respect as might be used when addressing noble figures or gods.

Onee-sama is an unusual, overly formal way of referring to one's sister. For most everyday purposes, the neutrally formal 'onee-san' or familiar 'onee-chan' would suffice: only those raised in highly formal settings would even contemplate using 'onee-sama' in a non-sarcastic way (as one might say in English 'oh of course your highness').

'Onee-sama' is a term mostly popularised by manga and anime, specifically shoujo-ai (love between young girls) series set in high-class boarding schools (see Strawberry Panic for a textbook example). Because of this association, 'onee-sama' is inextricably tied to the more elegant side of the shoujo-ai genre: a young girl using the term to address an older, unrelated girl could be hinting at a deeper relationship between the two of them. Or they could just be messing with you.

IRL (sort of): "Onee-sama, I hope you aren't labouring under the misapprehension that your seniority over me justifies you putting on airs."
Shoujo-ai fantasy: "Onee-sama, would you please become my soeur?"

onee-sama by Kazzius November 22, 2013

onee-chan 

Onee-chan is Japanese for older sister.

"Good morning, Onee-chan"

onee-chan by Makayo July 12, 2006

oniecia 

got beautiful, black hair, flat nose............works very hard and trys to please her self and others .............stush..............preedy..........
# hot
# sexy

# savage

oniecia is a girl .

oniecia by shana lee February 15, 2017

oneesa

Oneesa is the name that one cool kids get people named oneesa get lots of friends and boys 😉

Boy1: oh she’s cute what’s her name?
Boy2: Oneesa!
Boy1: oh say less!

oneesa by Shy with a C October 24, 2020

onielia 

The name onielia means outspoken,unique,talented,cute,loving,kind,understanding and that she will bring joy in everyones' life and she has a lot of attitude and fits in but stands out

Onielia is a very loving girl

onielia by Mia_.donnist November 3, 2018

onien 

A person who spends all of their free time bullying kids in minecraft.

Person 1: Did you hear that SkeppyCat got bullied?
Person 2: Yeah, I heard that she got bullied by an onien.

onien by Perpendicular Bisector March 22, 2020