The Hutt named Bakuush possessed a grand palace located on the planet of Nal Hutta. It was there that they threw their centennial feast sometime prior to the Cold War that occurred between the Galactic Republic and the reconstituted Sith Empire. Unfortunately, several young orpali dragon creatures, originally intended as the main course for the feast, managed to flee through the palace's sewage system. They then found their way into the swamps of Nal Hutta, and over time, developed into the species we now know as chemilizards.
The initial reference to Bakuush's palace appeared within the chemilizard Codex entry of Star Wars: The Old Republic. This is a massively-multiplayer online roleplaying video game that was launched by BioWare back in 2011.