YOU SAID:

You are a cool person who's brain is very big and smart

INTO JAPANESE

脳みそがとても大きくて賢いかっこいい人ですね

BACK INTO ENGLISH

You're a cool guy with a very big brain.

INTO JAPANESE

脳みそが大きいクールな人ね

BACK INTO ENGLISH

You're a cool guy with a big brain.

INTO JAPANESE

脳みそが大きいかっこいいな

BACK INTO ENGLISH

You have a big brain. That's cool.

INTO JAPANESE

あなたは大きな脳を持っています。それはかっこいい。

BACK INTO ENGLISH

You have a big brain. That's cool.