Hamatsa is the name of a Kwakwaka'wakwsecret society. During the winter months the Kwakwaka'wakw of British Columbia have many ceremonies practiced by different secret societies. According to the German-American anthropologist Franz Boas, who studied the Kwakwaka'wakw tribe during the late 1880s, there were four main societies: The war society, the magical society, the society of the afterlife and the "cannibal" society. The Hamatsa society is the most prestigious of all. It is often called a "cannibal" ritual, and some debate has arisen as to whether the Kwakwaka'wakw do or do not practice ritual cannibalism, whether their "cannibalism" is purely symbolic, or literal. Because of the secret nature of the society, the answer is not forthcoming. Currently, there is no eating of humans in the rituals.
Central to the Hamatsa ceremonies is the story of some brothers who became lost while on a hunting trip and found a strange house with red smoke emanating from its roof. When they visited the house they found its owner gone, but one of the house posts was a living woman with her legs rooted into the floor, and she warned them about the frightful owner of the house, who was named Baxbaxwalanuksiwe, a man-eating giant with four terrible man-eating birds for his companions. One version of the story describes the giant with mouths all over his body. According to another version, the brothers lured Baxbaxwalanuksiwe into a pit and threw hot stones on top of him until he died, his ashes turned into thousands of mosquitos. With the death of the giant, the men gained mystical power and supernatural treasures from him. These included wooden whistles, a bear mask, bird masks, costumes, and a Hamatsa pole, all used in later actual rituals. Variations of the myth abound within the Kwakwaka'wakw culture, but this man-eating giant was aided by an old hag, Qominoqa, who gathered bodies for him to consume.
In practice the Hamatsa initiate, almost always a young man, is abducted by members of the Hamatsa society and kept in the forest in a secret location where he is instructed in the mysteries of the society. Then at a winter dance festival to which many clans and neighboring tribes are invited the spirit of the man-eating giant is evoked and the initiate is brought in wearing spruce bows and gnashing his teeth and even biting members of the audience. In a symbolic gesture of pacification, rattles are shaken by he'liqa. These rattles, often in the shape of a human skull, are also used to announce the entrances of dancers. Many dances ensue as the tale of Baxbaxwalanuksiwe is recounted, and all of the giant man-eating birds dance around the fire. Finally the society members succeed in taming the new "cannibal" initiate. In the process of the ceremonies what seems to be human flesh is eaten by the initiates. Boas describes the hamatsa initiate as eating actual human flesh without chewing. After the ceremony, the initiate is forced to drink large amounts of sea water to induce vomiting, thereby voiding the body of potentially harmful toxins. All persons who were bitten during the proceedings are given expensive presents, and many gifts are given to all of the witnesses who are required to recall through their gifts the honors bestowed on the new initiate and recognize his station within the spiritual community of the clan and tribe.