Slaughter-Tribe

The Slaughter-Tribe (Orc."Gurgur-Hai") were one of several orcish tribal confederations in which the Orcs of Mordor had split after the Fall of Barad-dur in the War of the last Alliance.The Gurgur-Hai delighted in the cult of the blood and the flesh, in torture, pain and overindulging feasts.They also were despised cannibals.After Saurons return during the years of TA 1980-2002 the remaining Slaughterers were reorganised and redistributed into newly founded Tribal coalitions.

References:

 * Middle-earth: Shadow