People or things who absolutely ruin your perfect vibes.
Examples for mood killers:
- When you close apps and accidentally close Spotify

- When you‘re gaming with the boys and your mum tells you to do the chores
- When you drop your toothpaste

- When your mum yells that the food’s on the table but she straight up lies
by A1RMAX June 10, 2020
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Someone who can ruin your mood extremely quickly without attempting too. They just have a certain style or attribute that kills moods.
Omg, that guy Teji is such a mood killer. Like i was going to ask this girl to the dance, he randomly came in and asked for a condom.
by Saini Swag December 10, 2011
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A thought or statement you make as you’re about to have the best sex ever and whomever you are about to have it with brings up your ex.
Well that’s a real mood killer!
by Dr Bunnygirl October 5, 2019
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Originally, the "original Dubbs" was looking for condoms, and didn't want "old dirty man" condoms. Without recourse, Dubbs decided to ask the RA. When the door was answered, the RA's wife was finishing dressing. The RA came, Dubbs asked "may i have a condom sir?" The RA gave him a queer look, and slammed the door.

It should be noted that Dubbs only initiated this task due to the promptings of Gracie-Poo.

Eventually, several drug companies used this coined term in marketing their birth control products and morning-after pills.
"Yo bro, I was banging my chic last night, and i was taking her anal virginity when a random chinese kid showed up."
"Ah shit, what a total dubbs mood killer."

Ben, colon.

"Yo man, I was so worried the other day, I thought I got my bitch pregnant... so I just gave her one of those new dubbs mood killers, and no more problem."
by Woggles March 15, 2008
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