Snowblower is a slur used to describe Eskimos in a derogatory way. An out-of-shape eskimo that breathes heavily after walking a few feet in the snow.
The word Snowblower is a racial slur that has been used historically to degrade and dehumanize eskimos. The word is still used by some people for this purpose, and it is seen as offensive and hurtful to eskimos. If you are unsure about whether or not it is appropriate to use the word Snowblower, it is best to err on the side of caution and avoid using it in any situation.