One who does not conform to society or corporations; Rebel
"The future is bulletproof
The aftermath is secondary
It's time to do it now and do it loud
Make some noise"
by Killjoys March July 14, 2014
Get the Killjoy mug.
The new super heros of the world, out to bring colour and spread the message of the ugly truth to the rest of this conformist society.
We were created by My chemical romance thanks to their new album "Danger days - the true lives of the fabulous Killoys"
The original Killjoys consist of Pary Poison (Gerard Way) Jet star (Ray toro) Fun ghoul (Frank iero) and Kobra kid (Mikey way).
The names of these killjoys have also been rumoured to have something to do wih President JF kennedy, this is due to PJFK the first leters of he bands killjoy names. there is also a kennedy reference in the popular single from he album "NANANA", and the album its self was released on kennedys 50th aniversary. coincedence?
Many of the fans of my chemical romance (the MCRmy) have now adapted the name Killjoy and have even given theirselves killjoy names of heir own such as "NeonDeath" or "Rainbowninja". Killjoys typically dress in bright coloured biker jackets, tight jeans, biker boots, bright bandanna/ helmet/ mask, and wear shoe-laces tied round their wrists or wear gloves.
Killjoys carry a brighly coloured Ray-Gun for fighing the enemy (Draculoids).
Killjoys often have brightly coloured hair (inspired by gerard way's crimson red hair).
The Killjoys of the MCRmy will fight for what is right for what they believe and for the band that they love.
"Killoys, make some noise!"

person 1 : "whats she wearing?"
person 2: "her killjoy oufit."
person 1: "whats that?"
person 2 :" its an MCR thing".

(See Danger Days- the true lives of the fabulous killjoys)
by Amyneondeathkilljoy June 29, 2011
Get the Killjoy mug.
Reference to "Danger Days: The True Lives of the Fabulous Killjoys", the (as yet to be released) album by My Chemical Romance.

Outsider fighting against social/corporate suffocation.


"Killjoys, make some noise!"

Search "Na Na Na trailer" on YouTube for the best definition/example.
by Elph7777 October 1, 2010
Get the Killjoy mug.
1)someone who doesn't want others to enjoy something because it is in his/her taste.

2) someone who doesn't like happiness, laughter or fun especially when the person is not involved/invited and comes in to ruin it.
1) James is always coming in and cutting off the game because he sucks at it, he is such a killjoy.

2) Whenever we are laughing, joking or playing a fun game, it bugs jim's father so much that he runs downstairs and ruins it for us. tsk, tsk...such a killjoy.
by COOLMASTER X October 15, 2009
Get the Killjoy mug.
One who kills fun and/ or joy and happiness.

Also see party pooper
Dude!! I was about to get laid, but then my dad walked in and freaked out. He's such a killjoy.
by Senor Anon May 6, 2008
Get the Killjoy mug.
People who consider themselves fans of My Chemical Romance. It's a relatively new term, emerging after the release of their fourth album, Dander Days: True lives of the fabulous Killjoys. Killjoys are often rebellious, and express their rebellion through music, art, or literature. As such, they're somewhat well-know for being artistically gifted in those and other areas. Sometimes, a killjoy will give him/herself a "killjoy name," which is usually an exciting, unique adjective followed by an equally exotic noun.
Killjoys, make some noise!
by Sykoh July 8, 2011
Get the Killjoy mug.
The True Lives Of Fabulous Killjoys. My Chemical Romance is legendary.
In the true lives of fabulous Killjoys.
by Drizella Kokane June 26, 2018
Get the Killjoy mug.