Green’s Dictionary of Slang

ditch n.

1. the vagina; also a term of abuse to a woman (see cit. 1655).

[UK]Dekker Honest Whore Pt 2 (1630) III i: Here, Madam, is the suruey [...] with euery Medow pasture, Plough-land, Cony-borough, Fish-pond, hedge, ditch, and bush that stands in it.
[UK]Marston Insatiate Countesse I i: I feare none of these [i.e. wooers] will fall into the right Ditch.
[UK]Gossips Braule 7: No, thou Ditch of damnation, thous shalt have a Rope and Butter, before thou shalt borrow a Pin of me.
[UK]T. Duffet Psyche Debauch’d III i: When love thus storms a Fort, and enters by force, he plunders freely, and imposes what conditions he will; but when he comes sneaking, and creeping like a Boy after a Butterfly, Ten to one but she flies off, and he falls into the next Ditch; for where love is in motion, like Water thrown on the ground, ’twill fall into the first hollow place it finds.
[UK]Merry Maid of Islington 4: [as cit. 1608].
J. Dunton Whipping-Post 39: A Whore is a Deep Ditch, and ... her House is the Way to Hell.
A modest defence of publick stews ii: Your stopping up those Drains and Sluices we had to let out our Lewdness.
[UK]Rochester ‘A Panegyrick upon Nelly’ in Works of Rochester (1721) 67: Fine gilded ’Scutcheons did the Herse enrich, / To celebrate this Martyr of the Ditch.
[UK]G. Stevens ‘Transit of Venus’ in Songs Comic and Satyrical 151: Into Ditch Thales fell, with his Telescope geer.
[Ire] ‘The Gobbio’ Chap Book Songs 7: The Champion came as a champion should, / In two platoons he kneeled, stopped and stood, / He filled up the ditch with a faggot of strength, / And rammed his charge with a rammer of length.
[UK]‘Neaniskos’ Priapeia Ep. lxxix 77: Unfortunate Labdace, swears that she can scarce drag her feet along by reason of her ditch.
[US]B. Jackson Get Your Ass in the Water (1974) 115: Even a cold-blooded dope fiend need a second chance. / Turn him on and he’ll talk some shit, / suck a pussy and give a ditch dick a fit.
[US]Maledicta IV:2 (Winter) 182: The simplest words in common use for this ‘nasty thing’ [...] are those accepting the female sexual apparatus as a simple receptacle. These include [...] furrow, ditch, gutter.

2. the Atlantic Ocean.

[Ire]Cork Examiner 13 Jan. 4/5: That great ditch [...] the Atalantic ocean between the Old and the New Worlds.
[UK]J. Ware Passing Eng. of the Victorian Era.
[US]G. Bronson-Howard God’s Man 211: A blow-off one girl’s giving who’s going across the big ditch – Europe.
[UK]Derby Dly Teleg. 30 July 6/2: ‘Atlantic Ditch’ [...] Goering referred to aprehension innthe United States about a German invasion. With a ‘ditch’ of over 3,000 miles on one side, and another of 5,000 miles on the other the united States could not possibly be invaded.

3. (US) a canal.

[UK]Birmingham Dly Post 1 Mar. 6/1: The Suez Canal [...] that unpoetic ditch across the Ishmus of Suez.
[UK]Portsmouth Eve. News 6 Feb. 3/8: It will probably be many years yet ere ther ‘ditch’ connecting the North Sea and the Baltic earns dividends.
[US]Day Book (Chicago) 15 Apr. 23/1: The real boss of the big ditch through Panama will be Captain Hugh Rodman.
[US]F. Paley Rumble on the Docks (1955) 111: There’s a stiff in the ditch! [Ibid.] 112: The ditch stank [...] The water was black and slopped off the rakes and the diver.

4. the sea, esp. the English Channel or the North Sea.

[UK]‘Bartimeus’ ‘The Greater Love’ in Naval Occasions 231: Oars all ready, lads! Stan’ by to pull like bloody ’ell – there’s two of ’em in the ditch.
[UK]‘Taffrail’ Sub 88: ‘Charley’s Aunt!’ exclaimed a voice, with every indication of enjoyment. ‘’Ere’s old Bill bin an’ fallen in th’ ditch!’.
[UK](con. WWI) Fraser & Gibbons Soldier and Sailor Words 78: Ditch, The: The sea.
[UK]Eve. Standard 28 May 7/3: More than two centuries after a frenchman [...] first crossed the Channel under one balloon, an American today safely floated over ‘The Ditch’ suspended from dozens.

5. (drugs) the inside of the elbow, used for injections of narcotics.

[US] ‘Sl. of Watts’ in Current Sl. III:2.
[US]Illinois Legislative Investigating Committee Drug Crisis in Spears (1986).
[US]Ramones ‘Chinese Rock’ [lyrics] I’m just digging a Chinese ditch.

6. (US gay) the anus.

[US]B. Rodgers Queens’ Vernacular.

In phrases

in the ditch (adj.) (US)

1. impoverished, at the bottom of the social ladder.

[US]E. Torres Carlito’s Way 67: You can be broke in [...] China where everybody is in the ditch.

2. extremely drunk [the image of a drunk driver steering off the road and into a ditch].

[US] P. Munro Sl. U.
[US]K. Kainulainen ‘University Euphemisms in Calif. Today’ [Internet] A big, a very big, part of the euphemistic expressions in university students’ language have something to do with drinking, throwing up or sex. [...] ‘Bobo’, ‘blasted’ and ‘to be in the ditch’ are all used instead of ‘drunk’.

SE in slang uses

In compounds

ditch pig (n.)

a derog. term for an unattractive, fat woman.

[US]Sublime ‘STP’ [lyrics] And if she made off with my last clean rig / I’m gonna kill that fucking ditch pig.
[UK]Roger’s Profanisaurus 3 in Viz 98 Oct. 10: ditch pig n. An affectionate, lighthearted epithet for an ugly fat girl.
posting at SportsFilter 27 Jan. [Internet] She’s just a florida ditch pig getting too much attention.

In phrases

keep it between the ditches (also put it between the ditches)

(US) a phr. of farewell; ‘it’ being a metaphorical vehicle.

Steve Earle Shut Up and Die like an Aviator [live concert] We’re gonna give you one to put it between the ditches by. We want you to be careful.
[US]C. Cook Robbers (2001) 133: He told her to be careful and to keep it between the ditches.
[US]C. Cook ‘Heresies’ in Screen Door Jesus 127: Keep it between the ditches, son.