YOU SAID:
Hey! What’s the big idea?!
INTO JAPANESE
おい!大きなアイデアは何ですか?
BACK INTO ENGLISH
Hey! What are your big ideas?
INTO JAPANESE
おい!あなたの大きなアイデアは何ですか?
BACK INTO ENGLISH
Hey! What are your big ideas?
That didn't even make that much sense in English.