YOU SAID:
Don't be such a party pooper!
INTO JAPANESE
そのようなパーティーの愚か者にならないでください!
BACK INTO ENGLISH
Don't be such a party fool!
INTO JAPANESE
そんなパーティーバカにならないで!
BACK INTO ENGLISH
Don't become such a party fool!
INTO JAPANESE
そんなパーティーバカにならないで!
BACK INTO ENGLISH
Don't become such a party fool!
That didn't even make that much sense in English.