Wonder Bread Wop is a slur used to describe Italians in a derogatory way. Used by Italians to describe Italians who are more assimilated into "North American" culture.
The word Wonder Bread Wop is a racial slur that has been used historically to degrade and dehumanize italians. The word is still used by some people for this purpose, and it is seen as offensive and hurtful to italians. If you are unsure about whether or not it is appropriate to use the word Wonder Bread Wop, it is best to err on the side of caution and avoid using it in any situation.