Thunderguts Tribe

All Ogres cut a brutal path of devastation when they cross the land, but none have earned a greater reputation for smashing and grabbing than the Thunderguts Tribe. Occasionally the Thunderguts try to hold an enemy town or stronghold for ransom, extorting them so that they might hand over long strings of livestock to the Ogres. However, such plans continually fail; the over-greedy tribe proves either too impatient to wait for their ransom, or they simply eat their payment and then renege on their pledge not to attack. Many are the Empire towns and Orc forts that were leveled soon after they thought their freedom bought. Having recently returned to the Mountains of Mourn from a long journey into the Badlands and beyond, it can only be a matter of time before the tribe moves off again.

Source

 * Warhammer Armies: Ogre Kingdoms (8th Edition) -- pg. 20