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
Get the reverend killjoymug. 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?
Person 2: Why you doctor Killjoy, shooting up the party?
by Achilles015 June 6, 2009
Get the Doctor Killjoymug. by †wiligh† November 21, 2007
Get the Killjoymug. Professor Killjoy fucked your mom and most likeley hates you! He also likes to hit bunnies with his car
by Muas March 15, 2003
Get the Professor Killjoymug. by Maus March 15, 2003
Get the Professor Killjoymug. 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
frerard shippers in the live chat: ARMS BACK KILLJOY
by semop May 19, 2020
Get the arms back killjoymug. by Crashkiller January 5, 2020
Get the Crashfire T Killjoymug.