YOU SAID:
you are mr poopy pant
INTO JAPANESE
あなたはミスタープーピーパンツです
BACK INTO ENGLISH
you are mister poopy pants
INTO JAPANESE
あなたはだんなうんちパンツです
BACK INTO ENGLISH
you are mister poo pants
INTO JAPANESE
あなたはだんなうんちパンツです
BACK INTO ENGLISH
you are mister poo pants
That didn't even make that much sense in English.