Green’s Dictionary of Slang

(Aus.) drunk.

1887		Bulletin (Sydney) 15 Oct. 9/2: But one soft summer’s eve, a weary and perhaps ‘tangled’ stranger, misled by directions, struck the homestead of Mr. Anderson, and, thinking he was addressing Dickey the Lamb, endeavoured to ‘touch him’ for the usual donation of flour, and tea, and tough old mutton.
1902		Bulletin (Sydney) 8 Nov. 13/1: He rolled home for the seventh time, / His limbs all kinked, / His silk hat mangled, / His face obscured by blood and grime:– / In fact superlatively ‘tangled.’.
1906		Salt Lake City (UT) 30 Mar. 4/5: He is [...] tangled, stunned.
1912		Bulletin (Sydney) 29 Aug. 47/2: Piston, short-sighted and half-tangled, mistook it for a blob of pigment.