I smelly poopoo - I smelly poopoo is like when a kid is so full of themselves

I smelly poopoo is like when a kid is so full of themselves they smell like a stinky bathroom

My brother said I smelly poopoo after I ate three pizzas and cried.

My sister said I smelly poopoo during a math test.

I said I smelly poopoo to my dog because he ate my homework.