15
A '2.3' (aka. "Two point three") is your typical middle-class white 30/40-something year old trophy wife who's entire life revolves around her social image, her children, and driving her over-sized shiny new 4x4 through crowded suburban streets.
Also used to refer to the family unit that middle-class Australia fell into in the late nineties, when the average number of children per family was 2.3. These families are excessively affluent, social-status obsessed, and are usually seen in the suburbs of the inner-eastern region of Melbourne, Australia (such as 'Toorak', 'Camberwell', 'Glen Eira', 'South Yarra', 'Kooyong',etc). Vehicles driven by the female of these families are sometimes known as 'Toorak Tractors', referring to the 4x4/4WD 'tractors' that never see a spec of dust on them, and are used solely for transporting 2.3 children around the suburbs. No practicality is attributed to the use of these vehicles, as they aren't that much safer than your average family-sized stationwagon.
"Bloody 2.3's, I wish they'd stop driving those toorak tractors around the neighbourhood."
by NrKy_rox October 26, 2006
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16
The dankest number of all. In addition to the other definitions, 23 has the following important applications:

69/3 (an Illuminati number)=23
420-23=397
3+9+7=19
19+23=42, the answer to life, the universe, and everything.
Hallucinogens can be referred to as mind-expanding. Being as high as possible is known as 10.
4210=420 therefore weed is 10 times the ultimate answer.

23 is also the number of government satellites that are watching any citizen at any moment and the number of religious relics kept at the pentagon according to The Truth in GTA San Andreas.
23 is the key to understanding the world around us.
by Nightrate April 06, 2015
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17
A very unlucky and common number, also a good gcse pe shirt
Tom has gcse pe shirt 23 and a unlucky day is 23
by TomTheFatty January 29, 2017
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