Green’s Dictionary of Slang

(Aus.) The Doncaster Mile, a classic Aus. horse-race.

1996

J. Byrell Lairs, Urgers & Coat-Tuggers xix: [T]he very first race meeting he attended the day he kicked off as an urger happened to be the 1955 Doncaster day at Randwick when Fire Dust won the Donny .