YOU SAID:

Lilly is a meanie head and she always makes fun of me and writes stupid stuff on my arm

INTO JAPANESE

リリーは頭の中の頭で、彼女はいつも私を楽しませ、私の腕に馬鹿なことを書く

BACK INTO ENGLISH

Lily is the head in the head, she always entertains me and writes stupid things in my arms

INTO JAPANESE

リリーは頭の頭で、彼女はいつも私を楽しませ、私の腕の中に愚かなことを書く

BACK INTO ENGLISH

Lily is the head of the head, she always entertains me and writes silly things in my arms

INTO JAPANESE

リリーは頭の頭部です、彼女はいつも私を楽しませ、私の腕の中に愚かなことを書きます

BACK INTO ENGLISH

Lily is the head of the head, she always entertains me and writes silly things in my arms