Minnesota Nice: noun
A pattern of non-confrontational, passive-aggressive behavior instilled in the minds of midwesterners in general and Minnesotans in particular.
Used by advocates to put a pretty face on what is really a manifestly dysfunctional foundation for relationships, engendering as it does the ethic that honest communication is bad
Used by critics in the most ironic tones of voice to highlight what an insane, dehumanizing idea it really is.