subs. phr. (printers).See quot., and TOKEN.
1890. JACOBI [Slang Dictionary, s.v.]. BULLOCKS HEART. This is a term of contempt that pressmen apply to a single token, or order to print, of two hundred and fifty copies only, the lowest paying number in the scale of prices. This expression is due to the circumstance that it is not a fat but a lean job, hence the comparison to a bullocks heart, which, unless suffering from fatty degeneration, is the essence of leanness.