onetis 

That one girl you really obsesed with.

Guy one: dude it’s been 3 months get over her!
Guy two: i know but she’s perfect in every way she all i need!
Guy one: not another onetis bro u need to play the field, she’s just not that into you

onetis by tux* October 14, 2009

oneitis 

Often confused with love, this is the feeling that a particular woman is actually special. This is just an illusion; she is the same as the other three or so billion. "Go fuck ten other women" is the most commonly prescribed treatment for this "disease" (hence the "itis"), as it tends to show quite quickly how very alike people are.

In other words, get over yourself and your obsession with that girl, because it's just an illusion. And when you get rejected, don't be depressed. Because there's really not much to worry about.

Dude, you definitely have oneitis for that girl. You've been talking about her nonstop for the past week. Don't you realize she's nothing special, and that you are just being fooled? Snap out of it so you won't be so depressed when she rejects you!

oneitis by Fuss December 1, 2004

onevision 

People with only one vision or less (0).
People that can only see one thing or in most cases lacking vision completely.
A "onevision" therefore steal visions from others in most cases.
A "onevision" can also be called a "novision".

Picture of a "onevision" character:
http://bayimg.com/caPkGAabF

"What a onevision!"

Meaning: what a stiff vision lacking piece of shit moron,
or:
One of those vision lacking thief's.

"O no, another onevision!"

Meaning: someone stole our invention, again...

onevision by Señor Bazura April 29, 2009

Oneisha 

Sweet, smart, intelligent girl. She doesn't take anything(bullshit) from anybody, and so special that anybody will be lucky to have her. She always has something to say about everything which most times are true and she is very athletic. She is one of a kind. :) ;)

She also got a big booty

Anna: "Wow I wish I was Oneisha"
Susy: "Same"

Oneisha by Smexyy May 7, 2017

oneitis 

Mickey Black's definition is fucking retarded.

There is only one simple explanation for the term: An unhealthy romantic obsession or fixation for/on one person. This mental disease will often interfere with your ability to attract said person, due to your clingyness.

I'm suffering from oneitis because I have a massive crush on that one girl who works at that one store.

oneitis by Sroek July 8, 2010

oneitis 

An unhealthy romantic obsession with a single person. Usually accompanied by un-reciprocated affection and completely unrealistic idealization of the siad person.

John, snap out of your oneitis man. She's not into you.

oneitis by _AtoZ_ March 8, 2010

Oneties

The name of the decade from 2010 to 2019. We've had the noughties, and after 2020 we will have the twenties, so this has to be the most logical name for the one between.

Man: I've had some fun during the noughties!
Other Man: Yes, just think what fun we could have during the oneties!

Oneties by Little Computer Nerd December 8, 2009