YOU SAID:

your momma so fat she can't fit through the doorway

INTO JAPANESE

あなたのママはとても太って、彼女は戸口に収まらない

BACK INTO ENGLISH

Your mom is so fat she doesn't fit in the doorway

INTO JAPANESE

あなたのお母さんはとても太っていて、戸口に収まりません

BACK INTO ENGLISH

Your mother is very fat and will not fit in the doorway

INTO JAPANESE

あなたの母親は非常に太っており、戸口には収まりません

BACK INTO ENGLISH

Your mother is very fat and will not fit in the doorway