YOU SAID:
she thiccer than a bowl of oatmeal
INTO JAPANESE
彼女はオートミールのボウルよりも厚く
BACK INTO ENGLISH
She is thicker than an oatmeal bowl
INTO JAPANESE
彼女はオートミールのボウルよりも厚い
BACK INTO ENGLISH
She is thicker than an oatmeal bowl
That didn't even make that much sense in English.