Upside-Down Town

Upside-Down Town is a city populated by other Bumble Nums. In the episode Ultimate Upside Down Cake, the Bumble Nums travel to Upside-Down Town to get ingredients for Yeti's favorite cake. The Narrator labels the residents Bumble Hums because they say "Hum" instead of "Yum".

Local cuisine
Upside-Down Town meals include foods like cheese sandwiches that lack a Secret Ingredient. This dietary deficiency may be connected to their desaturated appearance and altered speech patterns.