Green’s Dictionary of Slang

date n.3

[rhy. sl.; date and plum = bum n.1 (1); note 17C dog-date, dog excrement, from supposed resemblance]

1. (Aus./N.Z./UK) the anus, the backside as a whole.

[Aus](con. WWI) A.G. Pretty Gloss. of Sl. [...] in the A.I.F. 1921–1924 (rev. t/s) n.p.: date. (1) A term for the posterior orifice.
[UK]J. Curtis What Immortal Hand 129: ‘Up your date for one and eight!’.
‘Cats on the Rooftops’ in Mess Songs & Rhymes of RAAF 1939-45 1: The Australian lady emu [...] / Wanders round the desert with a feather up her date .
[US]Amer. Jnl Folklore lxxv 220: Did you hear the one about the Arabs that went queer? They were sitting under a tree eating their dates [Simes:DLSS].
[Aus]B. Humphries Barry McKenzie [comic strip] in Complete Barry McKenzie (1988) 79: I hear tell the French tarts don’t say no to robbing the occasional date locker.
[Aus](con. 1940s–60s) Hogbotel & ffuckes ‘Tit Bits’ in Snatches and Lays 12: She wishes, no doubt, with a fervor devout, / That he’d bit not her tit, but her date.
[UK]B.S. Johnson All Bull 63: Boy, the state o’ my date — honest, it’s like burnin’ rubber.
[NZ]McGill Dict. of Kiwi Sl. 35/1: date anus; ‘get off your date’ was common army advice WWII.
[Aus]R.G. Barrett Boys from Binjiwunyawunya 13: He’s shoving the pineapple right up my date.
[Aus]R.G. Barrett Goodoo Goodoo 40: I’d have ripped that microphone out of the dash and shoved it fair up his date.
[Aus]G. Seal Lingo 88: The extent and variety of the Lingo terms for genitals and other body areas hints at a determined, if perverse, use of euphemism to avoid the use of perfectly respectable words like testicles, penis, vagina, and posterior. Such terms, though, seem sterile and colourless to the Lingoist who prefers such delights as [...] date, fanny, arse, bum dot, backside (spot your dot being an affectionate invitation to take a seat), blot, to name only a very, very few.
[Aus]R.G. Barrett Mystery Bay Blues 62: [He] shuffled around [...] like Marriane [sic] Faithfull with an axe handle stuck in her date.
[Aus]M.B. ‘Chopper’ Read Chopper 4 219: The good old Victoria Police Force has [...] bashed the barrel of a .38 calibre police special up the date of some scallywag.
[Aus]T. Spicer Good Girl Stripped Bare 106: We date (ew, sounds like a dried fruit or a bumhole).

2. (Aus.) a term of abuse [f. sense 1].

[Aus]W.H. Downing Digger Dialects 18: date — A word signifying contempt.

In compounds

date mate (n.)

(Aus.) a male homosexual.

[Aus]B. Hudson First Aus. Dict. Obscenities n.p.: date mate. A homosexual (see Bum chum, Poophole pal) [Simes:DLSS].
date puncher (n.) (also date-driller, ...packer)

(Aus.) a male homosexual.

[Aus]B. Humphries Traveller’s Tool 19: Most of our museum directors are demon date-packers.
[Aus]Tracks (Aus.) Aug. 5: This bloke is God. I bet he enjoys a quick buck and a fast fuck. He’s God because he hates date punchers, pillow chewers or faggots to some [Moore 1993].
[NZ]McGill Reed Dict. of N.Z. Sl. 59: date-driller/packer Active male homosexual.
date roll (n.)

a roll of lavatory paper.

[Aus]R.G. Barrett Real Thing 133: Grab haf a dozen date rolls. Unless you fancy wiping your Khyber with newspaper.
[Aus]Aus. Word Map 🌐 date roll. a roll of toilet paper. Colloquial definition as the extension of ‘date’ meaning ‘bum’.
[US]Hartford Courant (CT) sect. D 5 Sept. 27/4: G’Day from Down Under [...] Date roll — toilet paper.