Someone who infringes on your trips, man.
Me: *Smoking a bong*
Mom: No way, my child.
Me: Shut up biotch, don't be a killjoy.
#buzzkill #downer #wet blanket #spoilsport #curmudgeon
by rabidwalrus October 07, 2009
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 #halo #halo 3 #kill joy #ended spree
by Mr. Chad Allen October 08, 2007
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
by cheeseplaydoh August 11, 2004
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.
#killjoy #sadness #despair #michael #snarf
by Pissedofffacebookguy February 27, 2011
KillJoy Radio where the web will kick your ass!!. Can be found easily by going to the shoutcast site and searching for KillJoy. Also found onirc on undernet #killjoy.
Killjoy Radio, don't let the name fool ya!
by EvilMuse April 12, 2005
An idiot or someone so stupid they can't open a door.
Killjoy, you're suck a fucking retard... use google if you can't find the game.
#killjoy #stupid #dumbass #retard #faggot #queer
by †wiligh† November 01, 2007
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×