Green’s Dictionary of Slang

shagging n.

1. an act of sexual intercourse.

1680–1		N. Lee Princess of Cleve V i: Zeal in her shogging and Butting.
1871		‘Queen & Louise’ in Bold (1979) 190: To the beat of his prick keep time to a tick / For therein lies the beauty of shagging.
1888–94		‘Walter’ My Secret Life (1966) VII 1299: Both sisters never mentioned to any person the shagging the soldiers had given them.
1940		(con. 1922) in Randolph & Legman Ozark Folksongs and Folklore (1992) II 765: Let’s all stop and do a little shagging.
1947		in G. Legman Limerick (1953) 61: Simple shagging / Without any wagging / Is only for screwing canoeing.
a.1969		‘Old Horny Kebri-O’ in G. Logsdon Whorehouse Bells Were Ringing (1995) 237: Shaggin’, shaggin’, shaggin’ away, / Shaggin’ a little bit every day.
1970		G. Greer Female Eunuch 41: All the vulgar linguistic emphasis is placed upon the poking element; [...] rooting, shagging are [...] acts performed upon the passive female.
1978		A. Burgess 1985 (1980) 138: They have what they call a love supper, with real shagging.
1988		Guardian 9 Aug. 17/1: Ever since the BBC ignorantly banned [...] ‘Ain’t Nothing Like Shagging’ [...] shag has been at the root of sniggers and titters from a great many UK cultural bimbos.
1991		(ref. to 1910s) in Porter & Weeks Between the Acts 15: In my boyhood days [...] it was usually shagging, you know, a boy shagged another boy or a man shagged a boy you see, but I didn’t hear the word ‘homosexual’ till I came out of the army.
2000		M. Manning Get Your Cock Out 53: Incest, bestiality, Mother and Fatherfucking, donkeyshagging, cannibalism — you fucking name it.
2015		I. Welsh Decent Ride 107: Cure for aw the problems in the world [,,,] What the fuck has anybody got tae worry aboot when they’ve had a good shaggin?

2. a scolding.

1998

A. Warner Sopranos 133: We all know Kay’s an asswipe, but there was no need to give her such a shagging.

In compounds

shagging machine (n.)

(US) the vagina.

1947

(con. 1880s) in Randolph & Legman Ozark Folksongs and Folklore (1992) II 589: She can make water a mile an’ a quarter, / Out of her shaggin’ machine.