subs. phr. (old).See quot. Whence O-BE-JOYFUL WORKS = a drinking shop.
1823. GROSE, A Classical Dictionary of the Vulgar Tongue [EGAN], s.v. O BE JOYFUL, good liquor; brandy.
TO MAKE ONE SING O BE JOYFUL ON (or WITH) THE OTHER SIDE OF THE MOUTH, verb. phr. (old).To make one cry: see MOUTH.GROSE (1785).