bukail noun English. Late phases of the moon. bukail dua' sekud noun English. Roughly the twentieth phase of the moon. Cultural Note. It is believed that work done on the following day will result in injury, requiring two crutches, dua' sekud, to get home. bukail ndi' muli' noun English. Roughly the twenty-first phase of the moon. Cultural Note. It is believed that work done on the following day will result in serious injury, hence one cannot get home, ndi' muli', without help. Generic. bulan