Synonyms for spoilsport
EXAMPLES FROM THE WEB FOR SPOILSPORT
He must not be a spoilsport at feasts; his is no desert rle like John the Baptist's.
As elsewhere the use of the hyphen depends largely in the familiarity of the phrase; spoilsport, pickpocket.
No; I certainly don't want to be a spoilsport, and I'm glad I wasn't there—in my official capacity.