Green’s Dictionary of Slang

1. a glass.

1977		D. Muller Whitey 83: Git yesel’ a Khyber [...] A Khyber, ye thick pig! A Khyber Pass – a glass!
1984		Partridge DSUE (8th edn) 397: since ca. 1885.

2. the buttocks [= arse n. (1)].

1916		N. Douglas London Street Games 38: ’Ere, d’ye want a clip on the Kiber-pass?
1943		M. Harrison Reported Safe Arrival 32: Blimey, ’e ’ad them P.B.I.s not knowin’ wevver they wz on their ’eads or their Kybers.
1967		‘Whisper All Aussie Dict.’ in Kings Cross Whisper (Sydney) xxxv 6/3: khyber pass: Posterior.
1967		J. Wynnum I’m a Jack, All Right 121: They [i.e. a pair of shorts] do look a bit taut across the Khyber.
1972		Galton & Simpson ‘Man of Letters’ Steptoe and Son [TV script] Up your khyber.
1983		R. Aven-Bray Ridgey-Didge Oz Jack Lang 11: ‘Why don’t youse move your Khybers to an empty Cain and Abel,’ he said softly trying to show that he was not pooey on them, just miffed at the intrusion on his privacy.
1992		R.G. Barrett White Shoes 55: Heaps of sand all up your Khyber.
1999		G. Seal Lingo 90: Some other examples: bulli pass (sometimes simply bulli or pass) for arse (compare with the British ‘Khyber Pass’, or ‘Khyber’, which is also used here).

3. the anus [= arse n. (1)].

1963–74		B. Humphries Barry McKenzie [comic strip] in Complete Barry McKenzie (1988) 96: I’m as a dry as a kookaburra’s kyber too.
1972		‘Judge Dread’ ‘Big Eight’ 🎵 Simple Simon, Indian boy, comes on like a tiger, / He doesn’t like it in this town, but he likes it up the Khyber.
1981		S. Berkoff Decadence in Decadence and Other Plays (1985) 12: Bloody hell he turned me round and shoved it right up my Khyber pass.
1985		R.G. Barrett You Wouldn’t Be Dead for Quids (1989) 108: I’d like to [...] shove that pool cue fair up that Pommy‘s fat kyber.
1991		Age (Melbourne) 7 Dec. 130/7: Australian Engish [...] is not exactly as dry as a kookaburra’s khyber.
1996		Penguin Bk of More Aus. Jokes 200: Just shoved the lot straight up the Khyber.
1999		Ian Dury ‘Mash It Up Harry’ 🎵 And he wants a bit of Wembley up his Khyber Pass.
2000		M. Manning Get Your Cock Out 70: The horsey Princess was particularly keen on taking it viciously up the khyber.
2003		B. Dark Dirty Cockney Rhy. Sl. 17: Have you dropped an apple tart or has a rat died up your Khyber pass?

4. (Aus.) grass.

1955

Argus (Melbourne 5 Feb. 3/2: No chance of any King of Spain over the Khyber Pass.

5. the rear, e.g. of a car [= arse n. (3)].

1974

‘P.B. Yuill’ Hazell Plays Solomon (1976) 41: The hardest part was keeping far enough back not to bang him up the kyber.

6. (Aus.) dismissal, rejection [= arse n. (9)].

1998

Bug (Aus.) 28 Jan. 🌐 When they decide which clubs get the kyber pass from the comp at the end of the year, just what financial criteria do you use to compare community clubs with privately owned franchises?