Green’s Dictionary of Slang

scrubbado n.

also scrubado
[SE scrub, ‘the itch’ + Sp./Port. sfx -ado, thus giving the term an underpinning of racist stereotyping]

1. venereal disease.

[UK]Urquhart (trans.) Gargantua and Pantagruel (1927) I Bk I 125: Dukes of Turnbank, Lowbuttock and Smalltrash, together with the Prince of Itches (Scrubbado) and Viscount of Snatchbit.
[UK]B.E. Dict. Canting Crew n.p.: Scrubado the Itch.
[UK]N. Ward London Terraefilius I 30: Hands, if gently applied [...] transport the Patient into a Tingling Extasie [...] That the Scotch Scrubbado is no Curse but a most Princely Blessing.
[UK]New Canting Dict. [as cit. c.1698].
[UK]Bailey Universal Etym. Eng. Dict. [as cit. c.1698].
[UK]Grose Classical Dict. of the Vulgar Tongue n.p.: Scrubado, the itch.
[UK]Grose Classical Dict. of the Vulgar Tongue (3rd edn) n.p.: Scrubbado. The itch.
[UK]Lex. Balatronicum [as cit. 1796].
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue [as cit. 1796].
[US]Matsell Vocabulum.

2. (UK Und., also screwbado) a general term of abuse.

[UK]H.T. Potter New Dict. Cant (1795) n.p.: Screwbado a dirty fellow, a mean pittiful [sic] rascal.
[UK]G. Andrewes Dict. Sl. and Cant.
[UK]Flash Dict.
[UK]G. Kent Modern Flash Dict. 29: Screwbado – a dirty fellow, insignificant.
[UK]Flash Dict. in Sinks of London Laid Open.
[US]Matsell Vocabulum 77: screw-bado A mean, insignificant puppy; the lowest of the low.