Green’s Dictionary of Slang

(Aus.) a person from Tasmania.

1967		‘Whisper All Aussie Dict.’ in Kings Cross Whisper (Sydney) xli 4/2: taswegian: Tasmanian.
1970		Sydney Morn. Herald 24 Sept. 1/9: Mrs E. Taylor [...] a third generation Tasmanian, is concerned at a current fashion for calling Tasmanians Taswegians.
1986		C. Bowles G’DAY 42: Tasmanians, also known as Taswegians.
1993		B. Moore Lex. of Cadet Lang. 385: Taswegian [...] a Tasmanian. The -wegian element of the term (deriving from such formations as ‘Norwegian’, ‘Glaswegian’) italicises the perceived ‘alienness’ of Tasmania and Tasmanians.
2002		Honolulu Star-Bulletin (HI) 14 Apr. F4/4: The population, which sometimes calls itself Taswegian, feels itself a very separate entity from Australia.