Ok here goes...

Softdrink = pop soda
She'll be apples = everything will be ok
Amber fluid = Beer
To bag someone = pick on someone
Built like a brick S...house = tough/ strong
G'day = Hello - lol no one hardly says that these days .
Your a dag = refering to the thing on a sheeps rear end
Flaming Galah = idiot
Good on ya = can be good can be sarcastic... usually sarcastic when coming from me .
Mexican = someone south of the border/ country = me lol
Ring in = imposter.. we use this a bit Re: flyball hehe.
Ute = truck
Matey = friend