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English definition of “party pooper”

party pooper

noun [C] uk   /ˈpɑː.tiˌpuː.pər/ us    /ˈpɑːr.t̬iˌpuː.pɚ/ humorous
someone who spoils other people's enjoyment by disapproving of or not taking part in a particular activityPeople who are boring and old-fashioned
(Definition of party pooper from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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