Pac Man is a slur used to describe Pakistanis in a derogatory way. Sounds similar to pac-man (the early 80s arcade game)
The word Pac Man is a racial slur that has been used historically to degrade and dehumanize pakistanis. The word is still used by some people for this purpose, and it is seen as offensive and hurtful to pakistanis. If you are unsure about whether or not it is appropriate to use the word Pac Man, it is best to err on the side of caution and avoid using it in any situation.