Medal for the popular video game Halo 3. The Killjoy medal's purpose is to indicate when a player ends an opponent's spree, any spree of any kind. The symbol for the killjoy is a smilet with the "NO" symbol going through it.
When the medal is achieved, the announcer says "Killjoy"
When the medal is achieved, the announcer says "Killjoy"
by Chris000 January 15, 2008
Someone who is boring and thinks everything is weird and acts like the teenagers from "Hannah Montana".
by iLikeWatermeons33 November 25, 2012
by rabidwalrus October 08, 2009
Someone (usually Michael S.) who enjoys needlessly pointing out logical flaws by responding to internet conversations (that they weren't originally included in) with copious amounts of obscure (or useless/stalkerlike) information
Adam: "yeah, according to this list, the **** champs are ranked 22nd...that can't be right"
Mike: (ignoring **** reference) BLAHBLAHBLAHBLAH I SURF FORUMS ALOT AND LEARN ABOUT OTHER TEAMS THAT I'VE NEVER TALKED TO NOR COMPETED AGAINST BLAHBLAHBLABLAH THIS IS WHY YOU'RE WRONG BLAHBLAHBALHABLAH
A: You're a killjoy.
Mike: (ignoring **** reference) BLAHBLAHBLAHBLAH I SURF FORUMS ALOT AND LEARN ABOUT OTHER TEAMS THAT I'VE NEVER TALKED TO NOR COMPETED AGAINST BLAHBLAHBLABLAH THIS IS WHY YOU'RE WRONG BLAHBLAHBALHABLAH
A: You're a killjoy.
by Pissedofffacebookguy February 27, 2011
A name for people who suck the life out of things with either lame comments, or just their general presence.
I was having fun until Buzz Killjoy over there came over and ruined everything.
Buzz Killjoy ruined my high.
Buzz Killjoy ruined my high.
by MaseDiggityDawg March 11, 2010
Comes from My Chemical Romances album (Danger Days - the true lives of the fabulous killjoys) concept. The killjoys, Party Poison (Gerard Way), Fun Ghoul (Frank Iero), Kobra Kid (Mikey Way) and Jet Star (Ray Toro) are fighting against the evil Better Living Industries in California, 2019. Korse is the bald guy in charge of BLi, with the Draculoids as henchmen. Other killjoy types, such as Dr Death Defying, are in league with Poison and his gang. The music videos for Na Na Na (Na Na Na Na Na Na Na Na Na) and Sing are based on this alternate reality.
by Frankietheninja January 19, 2012
A dull and serious person with a limited sense of humour who always spoils jokes or light conversation by pointing out any flaw or exception
Person 1: "Damn chip packets only fill up halfway it's so unfair"
Person 2: "Yea mate they're half air what are we paying for?"
Person 3: "Actually, the slight inflation of the potato chip bag with nitrogen serves to prevent product spoilage or damage during transport. Furthermore, the mere volume of a chip bag should not give you an indication of how many chips are inside, but rather the mass of the product which is clearly labelled."
Person 1: "ok Reverend Killjoy"
Person 2: "Yea mate they're half air what are we paying for?"
Person 3: "Actually, the slight inflation of the potato chip bag with nitrogen serves to prevent product spoilage or damage during transport. Furthermore, the mere volume of a chip bag should not give you an indication of how many chips are inside, but rather the mass of the product which is clearly labelled."
Person 1: "ok Reverend Killjoy"
by emcee-sdOG January 25, 2015