Green’s Dictionary of Slang

fang artist n.1

[fang v.1 + -artist sfx]

1. one who is particularly adept at obtaining loans.

[Aus]A. Chipper Aussie Swearers Guide 24: Fang Artist, applied to (a) a glutton, (b) a constant borrower, or (c) a lecher.

2. a glutton.

see sense 1.
M. Miller on Gum Tree Lodge [Internet] The real ‘fang artist’ could do the whole thing one handed, effortlessly changing hands to lick fingers or to scoff a chip (french fry to you) or potato cake or to take a swig.