YOU SAID:

I have a hat on my arm that means my head is handy

INTO JAPANESE

私は私の頭が便利なことを意味私の腕に帽子があります。

BACK INTO ENGLISH

I have in my head that Hat I mean arms.

INTO JAPANESE

私の頭にその帽子を私意味する腕があります。

BACK INTO ENGLISH

In my head that Hat I mean arms are.

INTO JAPANESE

私帽子頭平均腕に。

BACK INTO ENGLISH

I am on the average arm of my hat head.

INTO JAPANESE

私は私の帽子頭の平均的な腕の上にいる。

BACK INTO ENGLISH

I am on the average arm of my hat head.