Ok, so, when I was growing up one of my friends next door was from Japan and of course the first things I asked him to say were how to say I want to poop or pee.
My family have been using these words for years and I’m kind of just now trying to figure out what they were.
I found the one he taught me for poop: https://jisho.org/word/うんち
The way he said to say pee was おしこ but obviously I could have misheard all those years ago. Does anyone know a word close to that?