CC Madhya 17.189

bāhu tuli’ bale prabhu ‘hari-bola’-dhvani
preme matta nāce loka kari’ hari-dhvani
Word for word: 
bāhu tuli’ — raising the arms; bale — says; prabhu — Śrī Caitanya Mahāprabhu; hari-bola-dhvani — the transcendental sound vibration “Haribol”; preme — in ecstasy; matta — maddened; nāce — dance; loka — the people; kari’ hari-dhvani — making the transcendental vibration Hari.
Translation: 
When the people assembled, Śrī Caitanya Mahāprabhu raised His arms and said very loudly, “Haribol!” The people responded to the Lord and became ecstatic. As if mad, they began to dance and to vibrate the transcendental sound “Hari!”