Popo is called Pepe in German

[SERIOUSLY THOUGH*]

To be honest, it's very close to "poo poo" for us. I'm surprised it wasn't changed for us since it's quite close.

Do you brits really pronounce popo as "poo poo"?. That's odd, considering that the rest of the world seems to pronounce it as "Poe Poe".

He meant that "popo" is close to "poopoo" in writing.
"Popo" is indeed pronounced "poepoe" in British English.