What is "machapunga"

The Machapunga were a small Native American tribe of the Algonquian language family, one of a number in the territory of North Carolina. They were a group who had migrated south from the Algonquian peoples of the Powhatan Confederacy in present-day Virginia. They are now extinct as a separate tribe. They spoke an Algonquian language and historically occupied a coastal area of northeastern North Carolina.