Ferbil was a term Jedi Padawan Klias Teradine used when accusing his fellow Padawan, Tylera Yorrick, of cowardice when the two went on an unauthorized trip to the Yallow Shrine against the knowledge of their Jedi Masters. The two discovered various ancient artifacts, but Yorrick argued against Teradine's idea of taking several artifacts with them, on the grounds that they were both dangerous and that stealing was wrong. Teradine told her not to be such a ferbil, shortly before a vitalicron he was holding activated with dangerous consequences, leading him to tell Yorrick to run for her life.