mengebay noun English. A small regrowth tree whose small red seeds are used for eyes in Subanen totems. Example sentence: Subanen. Penengaw amu mengebay, pu' nda'iduni mata ni masekada kini. English. Go find some mengebay seeds, for this image has no eyes. Example sentence: Subanen. Ki mengebay, bulung pa padun di pulamata. English. Mengebay seeds are also medicine for pinkeye. Generic. ayu; bulung