noun
buzzkill
BUHZ-kihl
noun
1
Someone or something that ruins the mood of an enjoyable moment.
"Don't be such a buzzkill — let us finish the party."
How to Use Buzzkill
Learner’s notesIn plain EnglishA person or event that spoils the fun.
When to use it
Informal, mostly spoken slang.
Word Forms
buzzkills plural
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Don't be such a _____ — let us finish the party.
Etymology
A compound of buzz ("a feeling of excitement") and kill — literally something that kills the buzz.