spoilsport
noun [ C ] informal disapproving uk/ˈspɔɪl.spɔːt/ us/ˈspɔɪl.spɔːrt/
扫兴的人，败兴者
a person who stops other people from enjoying themselves
She did ask her dad if she could have a big party, but the old spoilsport refused. 她确实问过她爸爸她能否搞个大聚会，但那个败兴的老家伙拒绝了。
Synonyms: killjoy party pooper wet blanket