ei-mata - in this way; bahu-bāra - for a long time; kīrtana karite - chanting; hari-bola bali' - uttering 'Haribol'; prabhu - Śrī Caitanya Mahāprabhu; uṭhe - stands up; ācambite - suddenly.

After the devotees had been chanting for a long time, Śrī Caitanya Mahāprabhu suddenly stood up and shouted, “Haribol!”