Hollowhead is a slur used to describe Dutch in a derogatory way. "Holland" originally comes from the words "Hollow Land" because it's so flat
The word Hollowhead is a racial slur that has been used historically to degrade and dehumanize dutch. The word is still used by some people for this purpose, and it is seen as offensive and hurtful to dutch. If you are unsure about whether or not it is appropriate to use the word Hollowhead, it is best to err on the side of caution and avoid using it in any situation.