Green’s Dictionary of Slang

o-be-joyful adj.

(US) drunk.

1848		North-Carolinan (Fayetteville, NC) 18 Nov. 1/6: Drunk [...] muddled, o-be-joyful, been sucking the monkey.
1875		Cambria Freeman (Edensburg, PA) 22 Oct. 1/7: The word Drunk is incomparably richer in synonyms than any other word [...] to this we may add: steaming it, goggle-eyed, have a brick in his hat, balmy, o be joyful.