A talking pig who claims to be a heroic samurai but is actually cowardly, lazy, and kind of a backstabber—though he's funny enough that you don't entirely hate him for it. He's basically a figment of Shin-chan's imagination, yet somehow acts like he's a legit recurring character. His actual appearances are pretty rare these days, mainly because his voice actor Kaneto Shiozawa passed away in 2000, and nobody's brought him back with dialogue since then.
The name's pretty much exactly what you'd expect from this show: "Buriburi" is the Japanese onomatopoeia for, uh, the sound poop makes when it leaves the building, and "zaemon" is just a typical samurai name ending. So yeah, it's a fart joke baked into his entire identity.
Content compiled by AnimeList.moe from publicly available sources.
