His full name is "Jugem Jugem Shit-Tossing the Life of Shin-Chan's Two-Day-Old Underwear Balmung Fezalion Isaac Schneider 1/3 True Love 2/3 Hangnail Anxiety Betrayal Knows My Name Or Does It Really Ignore Calls Squid Dogfish Halibut Trout-Cod Dogfish This Is A Different Dogfish, I'm Talking About The Dogfish Shark Kaluga Ray Yuuteimiyaoukimukou pepepepepepepepepepepepe Runny Diarrhea."
Kyubei is assigned to make him into a celebrity monkey.
The name "Jugem Jugem" is a reference to a story where the parents of a newborn baby couldn't decide on a single name out of many advised to them, the first being Jugemu. In the end, they named the baby with all the names together.
Different from the monkey's name, the baby was named "Jugemu Jugemu Gokō-no surikire Kaijarisuigyo-no Suigyōmatsu Unraimatsu Fūraimatsu Kūnerutokoro-ni Sumutokoro Yaburakōji-no burakōji Paipopaipo Paipo-no-shūringan Shūringan-no Gūrindai Gūrindai-no Ponpokopī-no Ponpokonā-no Chōkyūmei-no Chōsuke."
