Definition:
The MuMu, a traditional steam cooker made by digging a shallow pit and placing heated stones in the bottom. A layer of leaves is placed atop, and Kaukau and bananas as well as pumpkins are layered into the leaves. Tasty ferns and herbs add flavor, as the pig, the last addition, cooks down and the fat flavors everything. The oven is then sealed with more leaves and a tarp, and the contents are left to steam.
Leaves are spread, food is eaten with the fingers, and in the end when all the food is consumed, the leafy "plate" is gathered back up and put atop the smoldering coals to burn to ashes. Nothing remains but the stones.
"Lines" gather together to discuss matters of importance, or people may need to smooth out differences or slights that endanger unity.
The pig is slaughtered, ferns are gathered, banana stalks crosshatched and trimmed, it's a co-operative process. In the end, the food is portioned out as groups sit together by family line, as each family then further portions out their share.