| popo nm | familier, enfantin (caca, excrément) (UK, informal) | poo n |
| (US, informal) | poop n | |
| (UK, infantile) | poo-poo n | |
| (US, infantile) | doo-doo n | |
| Eh bien dis donc, ma puce, c'est un gros popo, ça ! |
"doo-doo", mainly US but not only?
I heard it in a British series I think (yes, Man vs. Bee, by actor Julian Rhind-Tutt)
| doo-doo n | informal (faeces) (familier, enfantin) | popo nm |
| (familier) | caca nm |