YOU SAID:

I can never get off his fat did, and all that they can ask is, i just wanna smack it

INTO JAPANESE

私は彼の脂肪を落とすことはできません.

BACK INTO ENGLISH

I can't get rid of his fat.

INTO JAPANESE

私は彼の脂肪を取り除くことができません。

BACK INTO ENGLISH

I can't get rid of his fat.