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