Boss
From RPGWW Wiki
In Gwa'aag, the head of the tribe is known as the boss (frequently slurred together in such a manner that, to foreigners, it sounds like a single word, or 'daboss').
Theoretically, each boss is subordinate to the warlord of the country, who commands the loyalty of all the tribes; however, wise warlords rarely call upon this. When the rest of the orks don't care for how their leader is running things, they are likely to turf him out of office.