For something (actor -um-) to give off an excessively foul, putrid odor of decaying flesh, flatus etc.
Bimmangēhel nan nabayag an natoy an bābuy.
The pig, dead for a long time, gave off an excessively foul odor.
mumbangēhel.
Excessively foul, putrid, of decaying flesh, flatus etc.
Mumbangēhel han utut han ung'ungnga.
The child's flatus is excessively foul.