Re: Bad speech
There are 2 mainly (not exclusive) accepted theories referring to what was a pommie. Now it basically refers to a British immigrant to Australia.
1) Short form for pomegranate which is believed to have been rhyming Aussie slang for immigrant
2) Pommie refers to whinging pom which in turn related to British (primarily prisoners who were deported) immigrants to Australia who complained about the living conditions there - in this case pom referred to Prisoner of (his/her) Majesty.