Green’s Dictionary of Slang

1. drunk.

1911		Bulletin (Sydney) 12 Oct. 14/2: Whoever hears [...] of a man being ‘drunk’? [...] The words supplied by individual fancy, such as ‘skew-whiff’, ‘umpty-doo’, etc., who would undertake to number them?
1913		Bulletin 25 Sept. 22/2: Me for ‘Inebriated’ [...] In the number, aptness and variety of its colloquial equivalents I consider it commandeers the pastry. For instance [...] full, tiddley, umpty-doo.

2. (also humpty-doodle) in fig. uses, extreme, excessive, whether positive or negative; first-rate.

1890		Dead Bird (Sydney) 25 Oct. 3/1: Really your last ‘little things’ [i.e. submissions of coarse jokes] were too dreadfully umpty for anything.
1895		Crowe Aus. Sl. Dict. 37: Humpty-Doodle, no good.
1900		Truth (Sydney) 16 Dec. 8/3: Him as owns the house and as a / Humpty-doodle sort of life.
1904		Sydney Sportsman (Surry Hills, NSW) 12 Oct. 3/6: Drytown— a place where the whisky is so umpty-doo that a Sydney domain dosser wouldn’t gargle it.
1908		Bulletin (Sydney) 30 July 14/2: ‘Goo’ day, Mucker!’ ‘’Day, Ponto! ’Ow y’ bumpin’?’ ‘Dead ’ookety, ole cock; feelin’ ’umpty-doo.’.
1912		Bulletin (Sydney) 5 Dec. 16/1: That tiger, though ferocious, was consistent through and through – / But this new perpetration is a trifle humpty-doo. / The old could be depended on to eat his proper fare; / But this new brute eats anything – and eats it anywhere.
1913		Truth (Sydney) 26 Jan. 12/6: What I sez is solid facts, sir, / And no humptydoodle stuff.
1918		C.J. Dennis ‘The Boys Out There’ in Digger Smith 73: Some uv the yarns yeh ’ear is true / An’ some is rather umptydoo.
1936		‘William Hatfield’ Aus. Through Windscreen 143: Humptydoo (presumably from the nursery rhyme of Humpty-Dumpty) connotes in Australian slang a state of everything gone wrong [AND].
1940		E. Curry Hysterical Hist. of Aus. 40: These gazebos [...] they jest been getting too umpty doo for woids.
1958		F. Lane Patrol to Kimberleys 109: There are some queer animals in Australia. Take the platypus. That’s the humptydoo cove what had all the professors scratchin’ their heads when they first saw him.

3. (Aus.) cheerful, in a good mood.

1913

Truth (Perth) 1 Mar. 5/4: ‘I don’t sulk’ returns Bill Willyum, / [...] / ‘But I dont feel humpty doodie, / And by no means over fit ’.