YOU SAID:
It is not possible to kick donkey
INTO JAPANESE
ロバをキックすることはできません
BACK INTO ENGLISH
You can not kick ass
INTO JAPANESE
あなたはお尻を蹴る
BACK INTO ENGLISH
You kick ass
INTO JAPANESE
あなたはお尻をキック
BACK INTO ENGLISH
You kick ass
That didn't even make that much sense in English.