Poop-Boy (うんちくん) is the feces created by Senbei Norimaki while on the road with no toilet around.
When born, Poop-Boy is unsure what it is doing existing. Akane Kimidori finds it and tries to befriend it, but Poop-Boy is too small to want to be friends with big people. He shortly finds a friend in Bird-Poop-Boy, who seems to get along with him. While they are walking around, they discover Manure-Boy, who is a bully at first, but quickly becomes friends when Poop-Boy saves him from falling into the river. On their journey, they meet Soft-Serve Ice-Cream-Boy, who they mistake for a poop. They rescue him from the ice cream store and let him go his own way. While they lose hope, they meet Old Man Poop who tells them to find Arale Norimaki's house, as she would know where to put them. On their way there, they are chased by a vacuum truck, but are saved when Arale rushes out and breaks the truck. When Arale brings them to her house, she puts them in the toilet and says that it is their home. They enjoy it, but are flushed down when Poop-Boy touches the handle wondering what it does.
Video game appearances
Poop-Boy appears in Penguin Village in the Famicom game Dragon Ball: Daimaō Fukkatsu and the Nintendo DS game Dr. Slump: Arale-Chan. Arale uses poop to fight in Dragon Ball 3: Gokuden and J-Stars Victory Vs. Also, Poop-Boy is a support-type character in Jump Ultimate Stars, and an enemy with other poops in Dragon Ball: Origins 2.