Green’s Dictionary of Slang

completely, absolutely, utterly.

1781		G. Parker View of Society II 177: As you venture among them they will fox you; which is, one of them comes behind you, puts a handkerchief over your eyes, and hustles you in amongst the thick of them, your pockets are turned inside out, and you are done out and out, as they call it.
1791		‘Another Highway-man’s Song’ in Confessions of Thomas Mount 20: And if I meet a [? text illegible] cove / I’ll do him out and out.
1803		R. Anderson ‘The Thuirsby Witch’ Cumberland Ballads (1805) 74: Of Nancy Dawson, Molly Mog, / Though thousands sing wi’ glee, / This village beauty, out and out, / She bangs them aw to see.
1812		Vaux Vocab. of the Flash Lang.
1825		S. Woodworth Forest Rose II iii: Now some folks would keep it out and out.
1835		D. Crockett Col. Crockett’s Tour to North and Down East 90: They whipped Captain Cornwallis, and scared Sir Harry Clinton out and out.
1842		J. Labern ‘The Stunning Meat Pie’ Comic Songs 6: It was a Stunner out and out.
1852		Newry Examiner 24 July 2/2: She said that [...] he had murdered her for ten years; he wanted her only to kill her out and out.
1857		T. Hughes Tom Brown’s School-Days (1896) 107: I’m as proud of the house as any one. I believe it’s the best house in the school, out-and-out.
1861		‘Billy Barlow’ in Bryant’s Songs from Dixie’s Land 16: There were lots of fine statues [...] Which beat all I’d ’ere seen before out and out.
1875		E.L. Linton Patricia Kemball I 123: You are out-and-out the most independent radical for a lady I have ever seen.
1881-2		T.B. Reed Fifth Form at St Dominic’s (1890) 261: Every one was determined the present number should be an out-and-out good one, and laboured and racked his brains accordingly.
1888		‘Rolf Boldrewood’ Robbery Under Arms (1922) 62: You needn’t thank me so out and out as all that.
1897		Truth (London) 10 June 35/2: ‘Said ’e’d like to take over the ole bilin’ out and out’.
1999		G. Seal Lingo 38: Other convict terms that are either still with us or have only relatively recently dropped include: fence, flash, jemmy, kid, lark, leary (leading to lair), mug, out and out.