Killjoy 

A shitty agent in valorant, that has op traps, and an annoying ass turret.

riot, you dumfucks, nerf this piece of trash to the ground

ur such a Killjoy uh

Killjoy by retardedpotago September 9, 2020

Killjoy 

One who make joy in killing.

Pleazent Killjoy!

Killjoy by TrumpTheKiđkissingSexoffenđer. January 21, 2021

Killjoy 

Someone who never gives up, and loves my chemical romance. Killjoys stick together, and are kids from yesterday.

They must be a killjoy.

Killjoy by Mcrluver June 19, 2021

arms back killjoy 

the punchline to an.. inappropriate, mini comic made by a frerardshipper (shipper of Gerard way and Frank Iero of my chemical romance).

standard fiatfv fan: hey look! It’s the stream for the medicine square garden music video
frerard shippers in the live chat: ARMS BACK KILLJOY

arms back killjoy by semop May 19, 2020

Buzz Killjoy

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 by MaseDiggityDawg March 10, 2010

reverend killjoy

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"

reverend killjoy by emcee-sdOG January 25, 2015

Doctor Killjoy 

Sometimes abbreviated as "Dr. Killjoy." Coined by N.E.R.D in the song "Anti Matter." A Doctor Killjoy is someone who makes it their business to ruin, take large dumps on, and/or "shoot up" your party or the party you are attending.

Person 1: Haha, I just pooped on your carpet, man!
Person 2: Why you doctor Killjoy, shooting up the party?

Doctor Killjoy by Achilles015 June 6, 2009