Bull stag

a castrated bull. See Stag.

See also: Bull

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
The case against Till, 37, of Browns Road in London, and Radley, 31, of Bull Stag Green in Hartfield, will call again next month.
The contest is open to all cocks and bull stags with a weight limit of 1.800 to 2.400 kilograms.