in-and-out, n.¹ — Green’s Dictionary of Slang

in-and-out n.¹

1. (also in and to) the penis.

1653		Urquhart (trans.) Gargantua and Pantagruel (1927) I Bk I 44: And some of the other women would give these names [...] my lusty live sausage, my crimson chitterlin, rump-splitter, shove-devil, down right to it, stiff and stout, in and to, at her again, my coney-borrow-ferret, wily-beguiley, my pretty rogue.
1834		‘Randy Johnny!’ Bang-Up Songster 9: He bedded every maid. / With his in and out, round about, / Hairy, leary, randy, dandy.

2. (also in-and-in, in-out, outs and ins) sexual intercourse; thus play at in and out under play (at)... v.

1635		H. Glapthorne Hollander IV i: They are sure faire Gamesters use to pay the boxe well: especially at In, and In.
1646		Parliament of Women B4: When he with his sweet-hearts ventures his state at the hole, I with his servant can passe away time at In and In.
1665		Head Eng. Rogue I 382: A Game at In and In; Throw In and In but ten times, and you win.
1765		H. Howard Choice Spirits Museum 32: Six times he put in and six Times he pull’d out, Sir, Till weary with Sport he could angle no more.
1797		M. Leeson Memoirs (1995) III 170: She knew the outs and the ins as well as any lady in Europe.
1955		K. Amis letter 27 Feb. in Leader (2000) 422: ‘Balls’ and ‘a quick in and out’ were very easy, and I found the best treatment for the ‘buggers’ was to alter each one on its merits rather than trying to devise an equivalent for the word.
1977		S. Berkoff East in Decadence and Other Plays (1985) 64: I pacify her with a quick, svelte and heroic in and out.
1988		D. Woodrell Muscle for the Wing 81: You’re only gonna get the old in-and-out until I see you in a dress that says size ten on it.
1993		G. Disher Deathdeal [ebook] A bit of the old in-out with female clients.
1997		alt.sex.stories 🌐 I began the old in-and-out.
1997–2001		Online Sl. Dict. 🌐 the old in-out n 1. sex. Origin: the movie A Clockwork Orange . (‘No time for the old in-out, love, just here to read the meter!’).

3. attrib. use of sense 2.

1968

G. Slatter Pagan Game (1969) 162: Using that in and out word when he hit his thumb with the hammer.

4. a pauper who alternates between living in a workhouse and street begging [i.e. in and out of the workhouse].

1884		Daily News 10 Dec. in Ware (1909) 157/1: There are considerable numbers of paupers, it seems, who find the workhouse a convenient retreat on emergency, but have a strong aversion to permanent residence there. They are known familiarly as ‘the ins-and-outs’.
1981		(con. c.1895) A. Harding in Samuel East End Und. 42: I had been sleeping rough for about three weeks [...] there were a lot of ins and outs by Old Montague Street.

In phrases

in and out, round the house, up and down [‘In and out tells the inmate what kind of exchange this is: something will be dropped off outside to come into the prison and something will be left by an inmate to be taken out of the prison; round the house tells the inmate where the exchange will take place: at some designated place within the prison grounds; up and down tells the inmate what the exchange will consist of, in this case, drugs: 'uppers' (amphetamines) and 'downers' (barbiturates)’ Looser (2001)]

(N.Z. prison) phr,. that indicates that a delivery of contraband has been scheduled; the components of trhe phrase offer what type of exchange it is, where it takes place and what it will comprise.

2001

D. Looser Boobslang [U. Canterbury D.Phil. thesis] 92/2: in and out, round the house, up and down int. indicates that an exchange of contraband is being set up for the near future.

want to know the ins and outs of a cat’s arsehole (also ...duck’s bum, ...nag’s arse)

to be very inquisitive.

1984

Partridge DSUE (8th edn) 1366/1: late C.19–20.

in-and-out n.1

In phrases

in-and-out n.¹