YOU SAID:
I want to be able to know how to poo my pants
INTO JAPANESE
ズボンのうんちの仕方を知りたい
BACK INTO ENGLISH
I want to know how to poop on my pants
INTO JAPANESE
ズボンのうんちの仕方が知りたい
BACK INTO ENGLISH
I want to know how to poop on my pants
You've done this before, haven't you.