For you Americans, a ruby is a curry. It is Cockney rhyming slang. Ruby Murray was a well-known singer here in the UK. Ruby Murray, curry, get it?

going out for a drink?

Oh dear, and I thought Auzzie slang was bad. hehe

Let's hear some Australian slang then.

*abso-bloody-lutely
misc:- absolutely and beyond any doubt.
*after dark
noun:- shark
*airy fairy
noun:- vague
* avago
verb:- To attempt to do something
*barney
noun:- an argument or fight
*bite ya bum
misc:- exclamation, be quiet.
*bingle
noun:- a car accident
*blowie
noun:- a blowfly, a large and very noisy fly.
*blowy
adjective:- windy
*buggerlugs
noun:- affectionate term used to mildly annoy somebody
*bushie, bushy
noun:- a country person who resides in the bush
*by jingoes
misc:- an exclamation of surprise.

and that's just some of em.