YOU SAID:
my brother pooped on my cat
INTO JAPANESE
私の兄弟は私の猫をうんち
BACK INTO ENGLISH
My brother poos my cat
INTO JAPANESE
私の兄弟は私の猫をうんざりさせる
BACK INTO ENGLISH
My brother is disgusting my cat
INTO JAPANESE
兄が猫を嫌っている
BACK INTO ENGLISH
My brother hates cats
INTO JAPANESE
兄は猫が嫌い
BACK INTO ENGLISH
My brother hates cats
That didn't even make that much sense in English.