Ondol 

The traditional floor heating system in Korea. Gravel or water-pipiping beneath the stone board floor. The fire in the kitchen can be used for both cooking and heating up the floor. Heat energy gets trapped under the floor that it can warm up the room with very little amount of fuel.

Ondol is an ancient technology, yet it still remains as the most energy-effective heating system in the winter time.

Ondol by coleman September 8, 2003

ondore 

1. The character Marquis Halim Ondore IV in the video game Final Fantasy XII. He spread several falsehoods in the game, prompting a party member to exclaim, "Don't believe Ondore's lies!" Soon 4chan's /v/ discovered that Ondore in fact tells nothing BUT lies.

2. Has come to mean any liar in general.

Whether encountering "the" Ondore or any random ondore: DO NOT BELIEVE HIS LIES.

I think I'm going to buy that Phoenix Wright game. Ondore said it was terrible, so it must be great.

My girlfriend says she's not cheating on me, but she's something of an ondore, so I don't believe her.

ondore by T_Andrews October 28, 2007

oncologist 

A doctor that not only treats cancer, but is always on call.

Jim: What are you studying again?
Kyle: Oncology. I told you.
Jim: Whoa! You know an Oncologist never gets to relax, always being on call.
Kyle: You're an idiot.

oncologist by Trova January 12, 2015

ontology

What it means for something to exist.

What does it mean for that chair in your room to exist? Does it exist because it is there in a physical form, because the material is there? Or does it exist because of its function, because the chair is there to be sat upon? What it means for something to exist is ontology, and both of these examples would work.

ontology by puhdoo November 2, 2013

oncology

The study of cancerous diseases, in which one would study tumors and their causes, treatment, and cure.

Bob: Hey Jesse, do you have the notes from yesterday?
Jesse: Yeah Bob, but don't worry, we only learned about Oncology and how important it is in the world!

oncology by Another IMSA student November 13, 2005

odol

Ontzettend dikke ochtend lul.

Dutch for: Incredible big 'in the morning' cock.

The cause of an Odol is unknown, there are different theories.

It can be caused when a guy has too much urine in his bladder, and so the cock gets in 'erection mode' so the urine can't flow through the cock, prevents a guy from pee-ing in his bed.

Girl in bed: What's that ?
Guy in bed: Sorry, I've got an Odol.

odol by supreme April 9, 2004

generative ontology 

The hypothesis that religion emerged as a paradigm to protect consciousness from destroying language.

Generative ontology argues that religion (narrative ego) and all mythologies are a promise to the consciousness by the super-conscious (mind) that language will one day be destroyed.

generative ontology by metawave July 5, 2019