YOU SAID:

This party is insanely cool! What do ya say?

INTO JAPANESE

このパーティーはめちゃくちゃクールです！ yaは何て言ってるの？

BACK INTO ENGLISH

This party is so cool! What is ya saying?

INTO JAPANESE

このパーティーはとてもクールです！ yaは何を言っているの？

BACK INTO ENGLISH

This party is so cool! What is ya saying?