kakan lahuh bulan
idiom
‘moon’ lunar eclipse.
Compare: Sanskrit rahu , "monster", "son of Diti, the deity with a serpent tail which, in eclipses, devours the sun or the moon"; Malaysian rahu , "the Hindu dragon which swallows the moon and causes eclipses".
If [there is] a lunar eclipse, or solar, pregnant women bathe on top of the pounding-mortar, so that their children will not
be spotted black and white.
The moon is eclipsed. [Literally, "the moon is eaten [by] the monster".]