YOU SAID:
It ain't over till the fat lay sings
INTO JAPANESE
太っちょが歌うまで終わらない
BACK INTO ENGLISH
It's not over until the fat boy sings
INTO JAPANESE
太った少年が歌うまで終わらない
BACK INTO ENGLISH
It's not over until the fat boy sings
That didn't even make that much sense in English.