-om-
For a liquid to pour out of, or through, a large hole in
something; to gush out from a hole.
Mga komoran, itaben bomoak-boak atan ong
katep ang boloat.
If it rains, it might pour
in there through the large
holes in the roof.
Ang taw ang sina-sak boboak-boak tang dogo ong sian na.
The person who was stabbed, his blood gushed
out of his stomach.