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".

Killjoy by Draca November 17, 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

Killjoy by MCRBTRCSI May 4, 2011

Killjoy 

The name of people who are major fans or the band My Chemical Romance.

Killjoys, make some noise! :)

Killjoy by Killjoy :) June 16, 2011

killjoy 

1: Someone who ruins someone else's fun.

2: A fan of the progressive 90's Canadian punk band, The Killjoys.

1: Max took the band out, and Conan the killjoy got peeved, and screamed at them. The party was ruined.

2: "Today I Hate Everyone" is Kev's favorite song, he's a total killjoy

killjoy by cheeseplaydoh August 11, 2004

killjoy 

emo trash

''you see that emo kid?'' ''yeah, i heard they're a killjoy''

killjoy by glittergerard June 15, 2015

killjoy 

You ended a opponent's killing spree. Medal on Halo 3 after ending a opponent's killing spree.

My opponent killed 5 opponents without dying. I killed him after that to receive the killjoy medal.

killjoy by Mr. Chad Allen October 24, 2007

Killjoy 

A strange phenomenon that occurs when a man sees an opportunity to lecture a woman in his life about why it's wrong to enjoy something she enjoys, whether it be silly laughter he doesn't understand among friends or a dessert or admiring her own beauty in the mirror. He has something negative to say because of his own inner turmoil, but he takes it out on the woman. He needs to feel like he's smarter and misery loves company.
This could also be true coming from a woman, or parent to child, child to parent, friend to friend or anyone to anyone. Sadly, I have had a lot of people try to be killjoys in my life, so I never try to be one toward others.

"Everytime I try to get laid, there is a killjoy."
"Calorie Cops are killjoys."
"Killjoys are sadistic."
"Everybody treats killjoys like crap. That's why they are the way they are."

Killjoy by MadamexXx February 26, 2009