YOU SAID:
I do poo poo in my pants
INTO JAPANESE
私はズボンでうんちをします
BACK INTO ENGLISH
I poo in pants
INTO JAPANESE
私はズボンにうんち
BACK INTO ENGLISH
I poo in the pants
INTO JAPANESE
私はズボンにうんち
BACK INTO ENGLISH
I poo in the pants
That didn't even make that much sense in English.