What is poopoo in Spanish?

"Poopoo" isn't a standard word in Spanish. However, depending on the context, you could use the following:

* Caca: This is the most common and straightforward word for "poopoo".

* Popó: A slightly more informal and playful term.

* Caca de perro/gato: If you're specifically referring to dog/cat poop.

* Excremento: A more formal term for "feces".

It's important to be aware that using these terms can be considered childish or rude in some situations, so it's best to choose the most appropriate word based on the context.