YOU SAID:
ur moms so fat the world was flat til' she was buried
INTO JAPANESE
君のお母さんはとても太っていたので、彼女が埋葬されるまで世界は平らだった
BACK INTO ENGLISH
Your mother was so fat that the world was flat until she was buried
INTO JAPANESE
あなたのお母さんはとても太っていたので、埋葬されるまで世界は平らでした
BACK INTO ENGLISH
Your mother was so fat that the world was flat until she was buried
That didn't even make that much sense in English.