Madclaw

Madclaw is a term used by the Wookiees of Kashyyyk to mark a dishonored member of their community.

Wookiee culture placed a high value on the use of their claws for peaceful, productive reasons only. Thus, any Wookiee who lashed out against another Wookiee with their claws was deemed to be a madclaw. The title was a grave dishonor, since the Wookiees view the use of claws as anything other than tools as feral, and madclaws were usually sent into exile.

Famous Madclaws
To date, the only madclaw to become famous throughout the Galaxy is Zaalbar, one of the companions of the Jedi, Revan. He lashed out at his brother, Chuundar, after discovering he'd been cutting deals with Czerka Corporation slavers. His father, the chieftain, Freyyr didn't believe him, and he was exiled. He later received a pardon.