Yes, in Strine we drop the "r"s like speakers in your States in the NE.
We say soft drinks - not soda (which is soda water) - nor pop which would be incomprehensible.
I always remember my sister saying to me when I was young, "If you won't stop saying youse for me, at least do it for my children." If you used 'you all', of course, you were shot.
