Green’s Dictionary of Slang

(mainly Aus.) the act of copulation.

1922		Joyce Ulysses 754: All the poking and rooting and ploughing he had up in me.
1970		G. Greer Female Eunuch 41: All the vulgar linguistic emphasis is placed upon the poking element; fucking, screwing, rooting, shagging are all acts performed upon the passive female.
1976		D. Ireland Glass Canoe (1982) 24: He never spoke of women, or rooting, never of his own or anyone else’s women.
1996		Penguin Bk of More Aus. Jokes 443: Plenty of grog, plenty of tucker, plenty of rootin’ and plenty of fightin’.
2005		Indep. 10 Sept. 22/1: Terms for sex [in Australia] were ‘rooting’, ‘tooling’, ‘poking’, ‘stabbing’ or ‘meat injection.’.