YOU SAID:
your mom is fat so fat that she stepped on the scale it said not you phone number
INTO JAPANESE
あなたのお母さんは太りすぎて体重計に乗ったけどあなたの電話番号じゃなかった
BACK INTO ENGLISH
Your mom is so fat she got on the scale but it wasn't your phone number
INTO JAPANESE
あなたのお母さんはとても太っていて体重計に乗ったけどあなたの電話番号じゃなかった
BACK INTO ENGLISH
Your mom is so fat she got on the scale but it wasn't your phone number
That didn't even make that much sense in English.