Green’s Dictionary of Slang

1. (S.Afr.) an Englishman who retains his colonialist mentality.

1973		P. Driscoll Wilby Conspiracy (1991) 154: You better believe it, soutie.
1986		Sun. Times (Johannesburg) 16 Mar. (Business Times) 2: Last week we highlighted the awkward situation in which Barclays stands — like a ‘soutie’, with one foot in South Africa and the other in the UK [DSAE].
2005		Quagga’s Rear View [blog] 13 Oct. I’m a Soutie, yes that’s what the Afriks call a SA of English extraction. They say we have one leg on the British Isles, one leg in SA and the middle bits hang in the sea, so they call us ‘salties’.

2. attrib. use of sense 1.

1977		W. Steenkamp in Cape Times 5 Dec. 13: A good South African of fairly recent ‘soutie’ origin [DSAE].
1989		J. Scott in Daily Dispatch (S.Afr.) 11 Apr. 5: The Speaker called him to order when he announced: ‘We are not a soutie party.’ [DSAE].