YOU SAID:

Stop hitting your sister on the head a bat, you nerd.

INTO JAPANESE

お姉さんの頭をコウモリにぶつけるのはやめなさい、オタク。

BACK INTO ENGLISH

Don't hit your sister's head against a bat, nerd.

INTO JAPANESE

お姉さんの頭をコウモリにぶつけないでください、オタク。

BACK INTO ENGLISH

Don't hit your sister's head against a bat, nerd.