Killjoy

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

Killjoy

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 06, 2008

Killjoy

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 08, 2011

Killjoy

The True Lives Of Fabulous Killjoys. My Chemical Romance is legendary.

In the true lives of fabulous Killjoys.

by Drizella Kokane June 26, 2018

Killjoy

Rebels of BLI (Better Living Inc.) in California 2019 from My Chem 's album Danger Days: The True Lives Of The Fabulous Killjoys.

It's time to do it now and do it loud. Killjoys, make some noise!

by KILLJOYSmakeSOMEnoise March 31, 2011

Killjoy

Someone who often spends their free time ruining the fun that others are having.

Guy 1: Dude, there's a bunch of killjoys over there, what do we do?

Guy 2: Just don't act like you're having fun, they won't suspect a thing if we just sit here and act "normal".

by Draca November 18, 2016

Killjoy

The group of fighters determined to take down BL/Ind. The most notable members of the group are
Party Poison
Fun Ghoul
Kobra Kid
and Jet Star

BL/Ind will take over the world unless the Killjoys stop them

by MCRBTRCSI April 15, 2011