YOU SAID:

I'll tell you what you are - you are childish.

INTO JAPANESE

誰だか言ってやる

BACK INTO ENGLISH

Say who?

INTO JAPANESE

誰が言うか。

BACK INTO ENGLISH

Who says?

INTO JAPANESE

- 誰が言ったの？

BACK INTO ENGLISH

- Who knows?

INTO JAPANESE

- 誰が言ったの？

BACK INTO ENGLISH

- Who knows?