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