Green’s Dictionary of Slang

very red, coarse-grained veal.

c.1698		B.E. Dict. Canting Crew.
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue n.p.: Colt veal, coarse red veal, more like the flesh of a colt than that of a calf.
1811		Lex. Balatronicum.
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.