i Register
In some senses, buzzkill is marked as slang, idiomatic. Watch for register when choosing this word.
buzzkill
UK /ˈbʌzkɪl/ US /ˈbʌzkɪl/
noun 2
Definitions
noun
1
Something that or someone who spoils an otherwise enjoyable event.
2
A person who attends a social event and occupies their time with unsociable activities.
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