Pohm is a slur used to describe British in a derogatory way. "Prisoner Of Her Majesty". Used mainly in Australia as a derogatory term for British People. Comes from the fact that Australia was a prisoner colony for British Prisoners. Sometimes heard as "Pom"
The word Pohm is a racial slur that has been used historically to degrade and dehumanize british. The word is still used by some people for this purpose, and it is seen as offensive and hurtful to british. If you are unsure about whether or not it is appropriate to use the word Pohm, it is best to err on the side of caution and avoid using it in any situation.