broughtonian, n. — Green’s Dictionary of Slang

broughtonian n.

[proper name Jack Broughton, ‘Captain of the Boxers’, inventor of the first prototype ‘muffler’ or boxing glove, writer of ‘Broughton’s Rules’ (which lasted 1743–1838) and champion of England 1730–5]

a boxer; also as adj.; thus Broughton’s mark, the pit of the stomach.

1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue n.p.: Broughtonian, a bruiser, a disciple of Broughton, who was a beef eater, and once the best boxer of his day.
1801		Sporting Mag. July XVIII 194/1: [heading] Spirit of the English Populace During the Broughtonian Period.
1811		Lex. Balatronicum.
1822		Life and Trial of James Mackcoull 28: He was often to be seen in those places which are frequented by the Broughtonians, or gentlemen of the fancy.