subs. (old).An Old Bailey hanging.
1785. GROSE, A Classical Dictionary of the Vulgar Tongue. BEILBYS BALL, he will dance at BEILBYS BALL, where the sheriff pays [for] the musick; he will be hanged. Who Mr. Beilby was, or why that ceremony was so called, remains with the quadrature of the circle, the discovery of the philosophers stone, and diverse other desiderata yet undiscovered.