Green’s Dictionary of Slang

dock-and-doris n.

also deoch-an(d)-doris, doc and doris, doch and doris, dock-and-doras, dock-an-dorach, dockin dorris, dorris and deoch
[Scot. deoch-an-doris, a parting drink or stirrup cup, which, by ancient custom, must be taken standing and need not be paid for]

a drink, usu. of whisky.

[[Ire]M. O’Connor ‘Eclogue’ in A. Carpenter Verse in Eng. in 18C Ireland (1998) 84: Then Dough an Dorres for the parting cup].
[Scot]J. Strang Glasgow and Its Clubs 423: The stabler was ready to house the horses, and to give a deoch-an-doris to the Bandits.
[Aus]Mercury (Hobart) 23 Apr. 2/5: [from the Stranraer Free Press] [...] a dram, a deoch-an-doras.
[UK]Manchester Eve. News 3 May 4/5: Come and take the ‘Doch and Dorris’ with a will.
[UK]Henley & Stevenson Deacon Brodie I tab.I ii: I could tak’ a dock-an-dorach, William [...] an extra dram hurts naebody, Mr. Leslie.
[Aus]W.A. Sun. Times (Perth) 9 Jan. 3/4: Well, boys, we’ll have a doch and doris and get home.
[UK]A. Binstead Pitcher in Paradise 109: And now [...] just one more bottle as a Doc and Doris.
[Aus]Sydney Sportsman (Surry Hills, NSW) 20 Apr. 3/6: [T]he ‘real gentleman’ [...] strolled into the hotel [...] to have a dock-an-dorish.
[Aus]Bulletin (Sydney) 17 Dec. 44/2: After a bit ’f a spell, th’ Missis comes in agen an’ ses: ‘Well, biys, better have y’re dockin dorris, or somethin’. It’s nearly shut up time.’.
[Aus]Sport (Adelaide) 5 June 4/1: He went with Wingie for his ‘dock and doras’ .
[US]G. Bronson-Howard God’s Man 179: A dock-and-doris all around to our success.
[Aus]Aussie (France) 5 June 15/2: So mine’s the shout, and before ‘lights out,’ / Just sink a pint or two with me – / A ‘dorris an’ deoch’ in a bottle o’ Bock, / (One for ‘Uncle George,’ another for ‘Jock’).
[Aus]Horsham Times (Vic.) 14 Sept. 7/4: McPherson and McTavis, and the bonny wee McGloon, / Will have a ‘dock an’ doris’ wi’ McPhee.
[Can]R. Service ‘The Ballad of How MacPherson Held the Floor’ in Bar Room Ballads (1978) 611: ‘Drink down your doch and doris, Jock,’ cried Treasurer MacCall.
[NZ]D. Davin For the Rest of Our Lives 75: I saved a nip of whiskey for this morning as a deoch and doris.
[NZ] (ref. to 1950s) J. Henderson Exiles of Asbestos Cottage 68: Just a wee deoch-an-doris / Before we gang a-wa’.