YOU SAID:

I have no idea what this whole thing is about

INTO JAPANESE

私はこの全体が何であるかわかりません

BACK INTO ENGLISH

I don't know what this whole thing is

INTO JAPANESE

この全部が何なのかわからない

BACK INTO ENGLISH

I don't know what all this is

INTO JAPANESE

これが何なのかわからない。

BACK INTO ENGLISH

I don't know what this is.

INTO JAPANESE

理解できんのだ

BACK INTO ENGLISH

I don't know what this is.