gopa-bālaka saba - all the cowherd boys; prabhuke dekhiyā - seeing the Lord; hari hari bali' - vibrating the sounds 'Hari Hari'; ḍāke - shout; ucca kariyā - loudly.

All the cowherd boys who saw Śrī Caitanya Mahāprabhu passing joined with Him and began to shout loudly, “Hari! Hari!”