No, more of a Stan type, I would say

surely it's "rack off you dag" or am I misremembering?

Dagestan does sound like an insult though..

Rack off Bouncer...

Calling someone a dag or telling them to rack off is probably as bad as calling someone a try hard

a dag is sheep shit.

Aw good on ya (!)

I had to get my Aussie / English - English / Aussie dictionary out for that one fair dinkum.

This thread has got me thinking of the Fred Dagg tapes - I miss John Clarke...

https://www.last.fm/music/Fred+Dagg/The+Fred+Dagg+Tapes

Harold and Joe. Go go go 

CAN I PET THAT DAAAGGGGG