Armo is a slur used to describe Armenians in a derogatory way. Short for Armenian.
The word Armo is a racial slur that has been used historically to degrade and dehumanize armenians. The word is still used by some people for this purpose, and it is seen as offensive and hurtful to armenians. If you are unsure about whether or not it is appropriate to use the word Armo, it is best to err on the side of caution and avoid using it in any situation.