Green’s Dictionary of Slang

1. Kensington, a suburb of Sydney; also attrib.

1901		‘Punter Bill’ ‘Clibborn’s Crooked Crew’ in Sydney Sportsman (Surry Hills, NSW) 10 Apr. 1/6: Kenso stewards if they’d seen this, / They'd forgive a bloomin lot.
1910		Truth (Perth) 1 Jan. 7/6: Colleen Dhu was just beaten at the finish by Swiveller, who beat her again at Kenso on Tuesday.
1920		Sun (Sydney) 26 Feb. 6/5: It was a great race [...] at Kenso yester day. Felix Nella, yer see, ’adn’t won a race for a dog’s age; though, mind yer, the good coin ’ud been planked down dozens of times.
1930		Sydney Sportsman (Surry Hills, NSW) 2 Sept. 2/1: KENSO. CUP. There will be plenty doing at Kensington on Saturday, September 27, when the Kensington £1000 Cup and Kensington Handicap will be decided.
1941		Baker Popular Dict. Aus. Sl.
1949		L. Glassop Lucky Palmer 24: Might be Kenso or Victoria Park or even Moorefield or Warwick Farm.

2. the Kensington race track.

1915

Drew & Evans Grafter (1922) 115: ‘He ran a furlong last at “Kenso” you know’.

3. the University of New South Wales at Kensington.

1972		Geoff Morley Jockey Rides Honest Race 10: You enrol at Kenso High School (in-joke) and pay your fees. You go to Uni five nights a week and work here five days a week [GAW4].
1994		Australian 14 Sept. 34: Richard Neville was back at his alma mater – University of N.S.W. – for a Class of 64 reunion dinner last week and recalled how Kenso High, as it was then known, turned the world around [GAW4].