Pepper is a slur used to describe French canadians in a derogatory way. A derivative of Pepsi. Quebec is the only place in North America where Pepsi has traditionally outsold Coke.
The word Pepper is a racial slur that has been used historically to degrade and dehumanize french canadians. The word is still used by some people for this purpose, and it is seen as offensive and hurtful to french canadians. If you are unsure about whether or not it is appropriate to use the word Pepper, it is best to err on the side of caution and avoid using it in any situation.