YOU SAID:

The only thing that exceeds the wind outside is the wind from my rump.

INTO JAPANESE

外の風を超えるのは腰からの風だけ。

BACK INTO ENGLISH

Only the wind from the waist exceeds the wind outside.

INTO JAPANESE

腰からの風だけが外の風をしのぐ。

BACK INTO ENGLISH

Only the wind from the waist beats the outside wind.

INTO JAPANESE

腰からの風だけが外風を打ちます。

BACK INTO ENGLISH

Only the wind from the waist beats the outside wind.