v. 1. for water to rush in a flood. Naánud ang balay dihang hingbul-ugan sa túbig sa bahà, The house was washed away when it was caught in the onrush of the floodwaters; 2. for emotions, masses of things to surge forth; n. 1. rush of water in a flood; 2. rush of emotions, masses of things. Bul-ug sa kalúuy, A surge of pity. Bul-ug sa mga kaáway, The onrush of the enemy. ma-un a. onrushing. Mabul-úgung lúhà, Rushing tears.