Green’s Dictionary of Slang

dog n.9

[abbr. salesman’s dog n.]

(Aus.) a tout.

[Aus]Bulletin (Sydney) 12 Dec. 29/4: He put up his starck by havin’ dorgs – what you’d call touts. He had a toobs dorg, a man who knoo all the big investors in London toob railways; an’ a big shipbuildin’ dorg [...].