What does amabhulu means?

The amaBhulu are one of the indigenous peoples of South Africa. They are also known as the AmaThembu, AbaThembu or Xhosa. The amaBhulu are part of the greater Nguni ethnic group. They are mainly found in the Eastern Cape province of South Africa. The amaBhulu are a patrilineal society, and their traditional social structure is based on clans and chiefdoms.