Hmm.. never heard about bingle.. but Australians do sometimes use the word 'bungle' for 'mistake'. For example 'Sorry, I made a bungle' or 'She bungled it up' (She did not succeed because she made a mistake/mistakes).
Hey, I just found some more words [COLOR=blue]here[/COLOR]. You will have to scroll down to where it says 'Aussie Lingo.' It has the word 'bingle' for 'car accident' (although I've never heard that one). Some are not correct, for example 'Duck's guts', but we can talk about that tomorrow..
Ok, now so you don't get confused about rhyming slang:
Rhyming slang is used a lot in the cockney dialect. Some of these passed on to Australian slang, for example 'Have a Captain Cook' means 'Have a look', and 'Let's hit the frog and toad' means 'Let's hit the road' ('Let's go/depart'). 'Don't tell porky pies' ('Don't tell lies').
Sometimes, but not always, they are made shorter - for example 'Don't tell porky pies' often becomes 'Don't tell porkies'.
They were often invented in prisons, because the prisoners didn't want the guards to understand what they were saying. The convicts used them for this reason. Now many people use them 'just for fun.'
A prisoner might say 'punch ya boat race', but I have never heard it before.
Here are some more examples: [COLOR=blue]Australian rhyming slang[/COLOR]
However, it's important to remember that not all of these are still used, or understood by everybody. About half of those in the list above, I've not heard before! It really depends on who you are talking to - some Australians know many of them, some Australians know almost none.