Sir Cloudesley, n. — Green’s Dictionary of Slang

Sir Cloudesley n.

[orig. a naval speciality, proper name Sir Cloudesley Shovel (1650–1707), a notable British admiral who was knighted for his suppression of piracy]

a hot drink of small beer mixed with brandy, plus lemon juice, spices and sugar.

c.1698		B.E. Dict. Canting Crew.
1785		Grose Classical Dict. of the Vulgar Tongue.