Green’s Dictionary of Slang

an introduction, whether to a person or to a piece of writing, music etc; thus adj. intro, introductory.

c.1905		J. Furphy Buln-Buln and the Brolga (1948) 🌐 An’ he fetches me into the house [...] an’ gives me an intro. to Mrs M’Gregor an’ the two Miss M’Gregors.
1910		‘Doss Chiderdoss’ ‘Larcenous Laura’ Sporting Times 12 Nov. 1/3: They had met without an ‘intro.,’ but at least he knew her name.
1924		C.J. Dennis ‘Introduction’ in Rose of Spadgers 12: An’ if yeh got a intro, I dare say / Yeh’d take it snifty an’ turn up yer nose.
1936		M. Harrison All the Trees were Green 109: South West’s your District: and a damn’ good ’un, too, if you’ve got the intros.
1940		J.H. O’Hara Pal Joey 48: I gave her a big intro.
1954		K. Amis letter 3 July in Leader (2000) 393: The less said about the bloddy poems the better, and I’m beginning to feel rather the same about the essays. Can’t say that in an intro.
1963–74		B. Humphries Barry McKenzie [comic strip] in Complete Barry McKenzie (1988) 66: Can you line up an intro.
1978		R. Price Ladies’ Man (1985) 13: He stood there [...] high-stepping in place like a boxer waiting for ring intros.
1996		J. Byrell Lairs, Urgers & Coat-Tuggers 115: [H]is intro remark went something like: ‘An owner should buy the bloody animal’.
1999		(con. 1956) C. Logue Prince Charming 208: I am doing the introes. I will tell Chris who you fucking are.
2001		N. Barlay Hooky Gear 181: Sensis slappin my back an doin intros.
2008		Simon & Burns ‘–30–’ Wire ser. 5 ep. 10 [TV script] Supply only goin’ down to y’all after I make the intro.
2013		J. Stahl Happy Mutant Baby Pills 169: Intros were made to the staff: three peppy writers who looked like they were about to cry.
2021		P. Papathanasiou Stoning 36: ‘It was only meant to be a friendly g’day, an intro’.
2021		‘Aidan Truhen’ Seven Demons 46: ‘[L]et me introduce everyone [...]’ We do intros.