mitubu' Sense 1 noun English. A class of spirit beings believed to have been saved by God from the great flood, and believed to live in the forest or in Bulanay City, believed to be a real, but hidden, city in Zamboanga del Sur. Sense 2 English. One of a group of spirits believed to have been originally a group of people who built a boat separate from Dempeken, survived the Great Flood, and became a nation. Generic. etaw ulangan