Montana is a slur used to describe Hispanics in a derogatory way. Derived from the movie "Scarface" which stars a cuban immigrant druglord named "Tony Montana", slur usually said with a Spanish accent
The word Montana is a racial slur that has been used historically to degrade and dehumanize hispanics. The word is still used by some people for this purpose, and it is seen as offensive and hurtful to hispanics. If you are unsure about whether or not it is appropriate to use the word Montana, it is best to err on the side of caution and avoid using it in any situation.