Captain Marvel is the biggest buzzkill of our century.

Bro, I was explaining the meaning of that song and she ruined it for all of us. She's such a buzzkill.

"The party was so fun until she decided to be a buzzkill and yell at the kids for playing."
"Well, that's my stepmom for you."

'Jeff, man, your such as buzzkill, we will talk about carbon emissions later'

God, Amy is a total buzzkill. Always ruining the good vibe

Timothy: LAWL tom come look at this buzzkilling picture of a ram hanging from a power line

Jessy: "Crap! I just remembered that I have a project due tomorow!"

Kassy: Dude, Buzzkill major.