i)The Dead Were Buried and Dug Back Up Again and then Reburied

                                 
                                               

The Maori had a very unusual method for burying their dead. Starting early in their culture, the Maori people began to bury people twice. First, after a week or two of mourning, the body was wrapped in mats and then would be buried and allowed to decompose. Then, a year later, the bodies were dug up and the bones were scraped to remove any remaining flesh.
The bones were then painted with red ochre, which is a natural pigment, and taken to different settlements, where they once again mourned the dead. Then there was another ceremony before they were buried again in a sacred place. Once this second burial was complete, the person’s soul would go on to their mysterious afterlife

                                  ii)Heads of the Killed Were Taken as Trophies

                                         

Heads held a special significance to the Maori people, and they were known to take the heads of their fallen enemies. Once they had the head, they would remove the brain and the eyes. Next, all the orifices were sealed with flax fiber and gum. The head was boiled or steamed in an oven. Then, the heads were dried in the sun for several days and then treated with shark oil.
One reason why they kept the heads of their enemies was so they could mock it later. One missionary said he watched one chief say to the head of an enemy chieftain:

You wanted to run away didn’t you? But my greenstone club overtook you! And after you were cooked you were made food for me!

And where is your father? He is cooked.

And where is your brother? He is eaten. 

And where is your wife? There she sits; a wife for me.

And where are your children? There they are, loads on their backs carrying food as my slaves.

If that wasn’t insulting enough, they also developed a bizarre game with the heads. They would pile them in a heap, and then they set the head of the principal chief on the top of the pile. Then, using stones or other heads, they took turns trying to knock off the head at the top of the pile.

                              iii)They Performed Cannibalism

Whether the Maori warriors committed cannibalism or not is highly debated. Some historians believe that it was just Europeans trying to paint the Maoris as wild savages. However, besides witness accounts of cannibalism, tribal oral histories and archaeological evidence also strongly suggest that the Maori warriors indulged in cannibalizing vanquished enemies.

There are a few reasons that the Maori ate their opponents, and it wasn’t because they were hungry. One was to internalize their spirit, which they called mana. Another theory is that the cannibalism was part of their post battle rage. Another is that it would send a message to enemies. They thought that the greatest humiliation you could do to your enemy was to kill them, chop them up, eat them, and then excrete them out.