naughty, n. — Green’s Dictionary of Slang

naughty n.

1. the vagina.

1890–1904

2. (mainly Aus./N.Z., also naught, naughtiness) sexual intercourse.

[1761		Nancy Dawson’s Jests 36: Here Nancy no more shall be knap’d for a gown, / Nor be tempted to do naughty things for a crown].
1890–1904		Farmer & Henley Sl. and Its Analogues.
1896		Farmer Vocabula Amatoria (1966) 184: Méfait, m. The sexual embrace; ‘the naughty’.
1915		N.Z. Truth 28 Aug. 7/7: [He] sought severance from his Ellen May on the grounds of naughtiness with a gentleman named William Laurie.
c.1943		S .J. Baker Aus. Vulgarisms [t/s] 11: nattum: The act of coition. naught: As for above.
1945		‘Cats on the Rooftops’ in Mess Songs & Rhymes of the RAAF 2: Little Mary Johnson will be seven next July, / She’s never had a naughty, but thought she’d like to try.
1959		D. Niland Big Smoke 169: It’s in me contract, no leaving the job for a naughty.
1967		J. Hibberd White with Wire Wheels (1973) 160: rod: Who was she? mal: A female sword-swallower. rod: I know that. Her name. [...] mal: I don’t remember. I don’t even remember the naughty.
1976		R. Morrieson Pallet on the Floor 83: Now what’s the first thing a man does after a naughty? Reach for a smoke?
1985		B. Humphries Traveller’s Tool 118: A colleague of mine once went to the quack because he thought he’d copped a dose and the Doc asked him if his old fella burned after he’d had a naughty.
1996		Penguin Bk of More Aus. Jokes 33: After dipping out on my naughtie, having my hands belted with a mallet and having a piss pot tipped over me while hanging on for dear life at that bloody window, I looked down and saw that my feet were only three inches from the ground!
2003		McGill Reed Dict. of N.Z. Sl.

3. in pl., sexual liaisons.

1963		F.J. Hardy Legends from Benson’s Valley 11: I get a lot of knock backs but I get a lot of naughties.
1977		(con. 1941) R. Beilby Gunner 82: It was also the opinion of the platoon [...] that Peppie had enjoyed more thoughties than naughties.
1981		J. Sullivan ‘Cash and Curry’ Only Fools and Horses [TV script] Have you been up to naughties Rodney?

4. (Aus.) a crime.

1974

Adamson & Hanford Zimmer’s Essay 43: Someone who keeps doing the same naughty really bugs the beaks.

5. an injury.

1984

Partridge DSUE (8th edn) 781: later C.20.

In compounds

naughty house (n.) [SE house/house n.¹ (1)]

a brothel.

1603		Shakespeare Measure for Measure II i: This house, if it be not a bawd’s house, it is pity of her life, for it is a naughty house.
1837–8		‘Tale Of A Shift’ in Cuckold’s Nest 35: No shame at all Miss Nelly knows, / For, to a naughty house she goes.

In phrases

do the naughty (v.)

to have sexual intercourse.

1896		Farmer Vocabula Amatoria (1966) 23: Avoir forfait = to copulate; ‘to do the naughty’.
1995		L. Stavsky et al. A2Z 29/1: doin’ the grown-up – v. engaging in sexual intercourse [...] (Also: [...] doin’ the naughty).

work for one’s living and do the naughty for one’s clothes (v.)

to be an amateur prostitute, who has a legitimate day-job but still goes out whoring to make extra money.

1984

Partridge DSUE (8th edn) 761/1: from ca. 1850.