Green’s Dictionary of Slang

(Aus.) a racecourse tout.

1967		‘Whisper All Aussie Dict.’ in Kings Cross Whisper (Sydney) xxxviii 10/3: pullemaside: A racecourse urger.
1983		R. Aven-Bray Ridgey-Didge Oz Jack Lang 9: He did not want to lob into any of the pubs where the stiffs and warbs hung out. There was enough shitmen, daggers, and pullemasides in the Western Suburbs where he lived and terrible turked.