YOU SAID:
If you ain't first, you're last!
INTO JAPANESE
あなたが最初でなければ、あなたは最後です!
BACK INTO ENGLISH
If you are not the first, you are the last!
INTO JAPANESE
あなたが最初でないなら、あなたは最後です!
BACK INTO ENGLISH
If you are not the first, you are the last!
That didn't even make that much sense in English.