Green’s Dictionary of Slang

south adv.

1. used in var. phrs. to mean downwards; see below.

[US]D. Di Prima Memoirs of a Beatnik 11: My tongue played briefly with his slight, hard nipples, and I continued my journey south, pausing now and then to nip the fine, smooth flesh just under his ribs.
[US]Simon & Burns Corner (1998) 16: A police picks at the waistbands of their boxers, looking south.
[US]J. Stahl I, Fatty 131: Wally’s pain was in [...] his heart and points south.

2. implying fig. distance.

[Scot]T. Black Gutted 21: I wasn’t far south of Spencer Tracy in The Old Man and the Sea.

In phrases

dip south (v.) (also go south)

(Aus./N.Z/US.) to put one’s hand in one’s pocket, esp. when one’s funds are running low.

[US]Little Falls Herald (MN) 31 Mar. 3/3: How to Operate the Shell Game with Profit [...] When the steerer gets the geezer in the push, let the boosters stall until the main plugger cops; then, if the gilly digs in his keyser [sic] or goes south for soft, give him a flash of the little dinkie doodle ball.
[Aus]Baker N.Z. Sl.
[Aus]Argus (Melbourne) 18 Apr. 3s/5: How many of us know that to ‘dip south’ means to search in one’s pockets for money.
[Aus]N. Pulliam I Travelled a Lonely Land (1957) 232/2: dip south – to see if you have any money in your pocket.
[NZ]McGill Dict. of Kiwi Sl. 37/1: dip south put hand in pocket for money, especially if running out of it.
[NZ]McGill Reed Dict. of N.Z. Sl. [as cit. 1988].
go south (v.) (also go down south, go way down south in Dixie) [Dixie n.]

1. see dip south

2. (US) to perform cunnilingus or anilingus.

[US]G. Legman ‘Lang. of Homosexuality’ Appendix VII in Henry Sex Variants.
[US]Guild Dict. Homosexual Terms 49: way down south in dixie, to go (v., obs.): Fellation.
[US]B. Rodgers Queens’ Vernacular 139: to tongue the clitoris and vulva [...] go South (dated).
[US]Maledicta VI:1+2 (Summer/Winter) 147: From them she might pick up and more to startle than identify with her sisters use words and expressions such as [...] go [way down] South [in Dixie] (oragenitalism, says Legman, referring us to Cary’s Slang of Penery and Its Analogues, 1916).
[US]D. Lypchuk ‘A dirty little story’ in eye mag. 8 July 🌐 On the jewelled terrace he growled at the badger, blew some tunes and went way down south in Dixie, where he found himself grinning in the canyon.
[US]‘Randy Everhard’ Tattoo of a Naked Lady 156: I went south on her, slithering down that prepubescent-like body.
‘Maureen’s Lusty Confessions’ on Apartment 231 🌐 My head is spinning at the mere thought of you hungrily feasting like a famished orphan on my sushi taco. Once you are finished eating my flowers way down south in Dixie, it will be my turn to polish your old German helmet...
[UK]Leethal Bizzle ‘Had To Go’ 🎵 She likes to go down south.
[US]J. Díaz This Is How You Lose Her 209: From there what little life you got goes south.

SE in slang terms

In phrases

go south (v.) (orig. US)

1. to abscond with, to run off; note ad hoc var. in cit. a.1964.

[US]B. Fisher A. Mutt in Blackbeard Compilation (1977) 3: ’Shorrible. ‘Iras’ went south with my ten bones.
[US]Jackson & Hellyer Vocab. Criminal Sl. 78: Keep tabs and see that he don’t go south with the dough.
[US]D. Hammett ‘Assistant Murderer’ in Nightmare Town (2001) 138: She went south with a couple of silk pieces.
[US]E. Anderson Thieves Like Us (1999) 149: Lawyers knew better than to go south with a thief’s money.
[US]N. Algren Man with the Golden Arm 114: Schwiefka [...] went south with the bundle.
[US]N. Algren Walk on the Wild Side 198: I don’t mean that real hard swindle where she took the rap and you went south with the bundle.
[US] ‘Honky-Tonk Bud’ in D. Wepman et al. Life (1976) 56: They took him to jail and gave him no bail / So he could slip away to the South.
[US]J. Wambaugh Glitter Dome (1982) 206: Both our mommas went south.
[US](con. 1930s–60s) H. Huncke Guilty of Everything (1998) 289: A guy would come up with thirty or forty dollars to cop an ounce of A with and someone else would go south with it.
[US]W. Keyser ‘Carny Lingo’ in http://goodmagic.com 🌐 Going South — Stealing money (sometimes you put it into the apron to be counted, other times you 'go south' with it).

2. (also head south) to collapse, to malfunction, to break down; of events, to go wrong.

[US]A. Baer Putting ’Em Over 4 Dec. [synd. col.] September standings of the clubs indicate that some teams go so far south in the spring that they keep the habit all summer .
[US]Pittsburgh Courier (PA) 24 Feb. 7/1: The Notebook [...] is on the brink of going South.
[US]Business Week Sept. n.p.: The market then rallies, falls back to test its low – and just keeps ‘heading South,’ as they say on the Street.
[Aus]R.G. Barrett Between the Devlin 18: The painting went west and Peregrine went south.
[US]T. Jones Pugilist at Rest 229: These are my true feelings. I love you. Don’t fucking go south on me.
[UK]N. Cohn Yes We Have No 324: The Deanna’s ankles went south.
[UK]Indep. Rev. 29 June 7: I thought it was just my boobs going southwards.
[US]J. Ridley What Fire Cannot Burn 62: I’m a poster child for what happens when things go south.
[US]T. Dorsey Hurricane Punch 130: Let’s be honest [...] Membership isn’t going anywhere but south.
[US]T. Robinson ‘The Long Count’ in Dirty Words [ebook] [I]t became obvious that his minor talents [i.e. as a boxer] were heading south.
[Aus]D. Whish-Wilson Old Scores [ebook] The gun wasn’t registered [...] but it suited his purposes. If things went south he could ditch it.
[US]S.M. Jones August Snow [ebook] ‘You’re looking at how all of this could go south’.
[UK]M. Herron Joe Country [ebook] Sometimes jobs went south, that was all.
[US]S.A. Crosby Blacktop Wasteland 117: He had heard gunshots [...] That was a good indicator things had gone pretty far south.

3. of a person, to be exhausted.

[US]Van Loan ‘Sanguinary Jeremiah’ in Old Man Curry 130: This yer night work sutny got me goin’ south for fair.

4. to be killed.

[[US](con. 1969) C.R. Anderson Grunts 25: Half were ‘going south,’ [i.e. to Vietnam from US airforce base, Okinawa, Japan] [...] they were not at all sure they would survive the experience].
[US](con. 1968) T. Wolff In Pharoah’s Army 206: ‘That was some bad shit, man, Whirl War One. [...] I mean, millions of assholes going south, right?’.
[UK]Indep. Rev. 25 Sept. 3: I have known a few friends who have ‘gone south’ in war zones [...] But the shock of hearing of any new death is always powerful.

5. to lose deliberately, to ‘throw’ a contest.

[US]D. Jenkins Life Its Ownself (1985) 139: Who’ll remember those [...] games when the guys went south and bet the other side?

6. to lose interest.

[US]R. Price Clockers 93: If you can’t eat it, fuck it, or sell it something, Mazilli goes south.

7. to go to waste.

Privilege Insurance [advertising leaflet] Drive a car in or around London and your money will certainly go south.