Zorba is a slur used to describe Greeks in a derogatory way. From the novel "Zorba the Greek," by Nikos Kazantzakis.
The word Zorba is a racial slur that has been used historically to degrade and dehumanize greeks. The word is still used by some people for this purpose, and it is seen as offensive and hurtful to greeks. If you are unsure about whether or not it is appropriate to use the word Zorba, it is best to err on the side of caution and avoid using it in any situation.