randomaniac 

One who does things randomly and spontaneously. Sometimes it does not make sense what they do because it's so random that even trying to make sense of it will make you go cross eyed.

I'm a randomaniac for inserting this random entry into the urban dictionary database.

randomaniac by Bob April 12, 2004

ransomania 

1. An irresistible impulse to demand ransom in the absence of any economic motive

2. A mental illness in which you have a strong desire to kidnap foreign vessels

3. A mood disorder; an affective disorder in which the victim tends to respond excessively and sometimes violently during buccaneering.

A. The kidnappers demanded a ransom of one million dollars so I don't think we can pay such that amount of money

B. They suffer ransomania. I am sure they are inclined to react violently if we don't pay ransom for our staff release.

ransomania by Abdi Mahad October 28, 2012

Fandomaniac 

Any person who is in one or many Fandoms and who speaks of it or them everyday all day. They often annoy everyone around them.

*girl speaking of eight different fandoms*
Other girl- Wow. That girl is such a fandomaniac!

Fandomaniac by LouIsACat July 1, 2015

randomania 

imaginary world, run by randomaniac, and his followers, who populate it

once upon a time in randomania...

randomania by amski July 2, 2004

rankmaniac

title rewarded to the student in Luis von Ahn's Science of the Web (Fall 2008) class for whomever manages to have their page rank highest when one searches "rankmaniac" on google

Connie Lin is a rankmaniac!

http://www.andrew.cmu.edu/user/calin/
(details listed on page...)

rankmaniac by Connie Lin is Rankmaniac February 20, 2009

Randomandarin

Adj. A synonym used to replace the overly abused abjective "random".

Despite it being created by sheer, MSN-influenced dorkassery, it has since begun a campaign to replace "Random", a word that which has almost lost all significance in the English language. This is due to its international syndication (which, sadly, is irreversible) with teen groups such as Popular people, Beautiful people, Jocks, Emos, Goths, Punks, Bogans, Hotties, Notties, Stoners, Drama-Queens, Bludgers, Musos, Speds, Techies, Sporties, Alcies, Clowns, Sluts, Smuts, Drop-Outs, Metros, Fags, Metro-fags, Dags, Try-Hards, Otakus, Goodie-Goodies, Over-Achievers, Snobs, Ruffians, Gangsters, partiers, Arties, Gamers, Nerds, Geeks, Creeps, Freaks and Dorks alike.

"Aya can be so randomandarin!"

Randomandarin by Full Metal Alastair January 2, 2009

randomnicity 

The Quality or Characteristic of being spontanious

Eg. the combined randomnicity of A.J. and Leah is very high.

randomnicity by Thepunkmonk October 10, 2005