YOU SAID:

flour the back side of my rear end

INTO JAPANESE

後端の裏側に小麦粉をまぶす

BACK INTO ENGLISH

Sprinkle flour on the back of the back edge

INTO JAPANESE

後端の後ろに小麦粉を振りかける

BACK INTO ENGLISH

Sprinkle flour behind the back edge

INTO JAPANESE

後端の後ろに小麦粉を振りかける

BACK INTO ENGLISH

Sprinkle flour behind the back edge