Green’s Dictionary of Slang

slang v.2

[slang n.2 (1)]

to chain up, to place in fetters.

[UK]Lex. Balatronicum.
[Aus]Vaux Vocab. of the Flash Lang. in McLachlan (1964) 265: slang’d: fettered.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue 1964).