unobtainium 

An imaginary unavailable material used humourously to solve otherwise impossible problems; an item of unaffordable price.

Of course, it would have to be made of pure unobtainium to work.

unobtainium by Peter Baird August 16, 2003

unobtainium 

any nonexistent material

A ship like that would have been made of unobtainium

unobtainium by The Return of Light Joker April 1, 2010

unobtainium 

the rarest of ALL elements unexistent everywhere in today's world you'll NEVER be able to aquire some nobody has any at all it's undoable

as the chief procurator here, I've searched the net, scoured the collectors inventories boggled my mind far and wide, but struck out bro your frosted, translucent, illumuinated silk-ma~che 12vdc /12ft long stringer of dingo balls must have been made of unobtainium they're nowhere to be found damn!

unobtainium by grzly February 28, 2009

unobtainium 

Word originated around Sport Car Racing in the North Texas area in the mid '70s. We referred to "cheater" sport car motors as having unobtainium parts that the average person could not get, but I like the way it is used in #1.

When the Porsche blew the transaxle, there was unobtainium all over the track.

unobtainium by Bill Stafford May 17, 2006

Unobtainium 

James Cameron's autograph

James Cameron only gives his Unobtainium for fan money.

Unobtainium by Skyloop December 26, 2009

Unobtainium 

A substance that can be melted down into liquid and used as a fuel, weaponized, or used for more than any resource on earth. Many people would have a financial interest in it if it could be found, since having it would be a lot like having control of gold, oil, and nuclear weapons all in one substance.

Once humans found the unobtainium on Pandora, people living in Pandora neighborhoods started selling their houses cheap. Blue people called humans speciesist/human racist in the later additions/sequels to avatar when a planet wide war broke out at the same time as a planet wide famine, plaque, and natural disasters on Pandora. Humans started asking other humans for donations to support their organizations for saving Pandorian food, children, elderly persecuted, and animal life. There was also cheap Pandorian real estate available for humans who wanted to own property in another planet.

Unobtainium by Solid Mantis May 30, 2019

Unobtainium 

This crazy rock-like substance that is "hard to get" without shedding a lot of blue blood (but not Blue-Blood) used in the movie Avitar to make smart, thinking people perseverate on this STUPID word for the entire film.

Can you believe those morons who wrote/directed such a creative film were unable to come up with a better word than "unobtainium?" Who came up with this, are they still finding work writing? Are they kicking themselves? What happened to words like kryptonite?

Unobtainium by The Fig February 1, 2010