"On-On" is a word in HILIGAYNON

ón-ón - Illegitimate, adulterine, spurious,
bastard, offspring of adultery.

ón-on - To cook fish, meat, etc. in very
little water mixed with vinegar and various
spices. The concoction (inon-onán) is
usually served with little or no sauce. Ononí ang ísdà. Cook the fish in the ón-on
way. Isdà nga inon-onán. A dish of highly
seasoned fish.

ónras, (Sp. honras) Obsequies, last
honours; to ring the bells for a funeral, ring
the (passing) bell, toll the bell. (cf. úndras).