What does the Australian slang word pom mean?

The Australian slang term "pom" is usually a derogatory reference to someone from England.

The origin of the term is not known, but there are numerous theories.

One popular theory is that the Word is an abbreviation of Prisoner Of Her Majesty, or possibly Prisoner Of Mother England, as the first white settlers in Australia were convicts from England.

Another theory suggests 'pom' is short for 'pomegranate', as the Word 'pommygrant' was Australian rhyming slang for 'immigrant'. In a similar vein, the English settlers became known as 'poms' because their pale skin turned pomegranate red in Australia's blazing sun.