Green’s Dictionary of Slang

(US) handcuffed.

1756		J. Cox Narrative of Thief-takers, alias Thief-makers 80: [letters dated 13 & 18 Jan. 1754] Dear Brother and Sister [...] I beg for God Almighty’s Sake, you would help me [...] for I am loaded with Irons, which is very troublesome to me. [...] I am very sick and weak; and this Night we are all to be double-iron’d.
1829		D. Jerrold Black-Ey’d Susan III iv: (William is seated, double-ironed, on a spare tiller).
1895		Crowe Aus. Sl. Dict. 38: Ironed, han[d]cuffed.