1 definition by This is my name on this site

An angry and judgemental individual who, not content with spending their waking hours covering half their face with dirty bit of cloth, insist that others do likewise. The sight of seeing the full human face as nature intended is apt to send the Mask Nazi into an incandescent rage, eliciting a verbal tirade of such epithets as 'covidiot' or 'anti-vaxxer'. The fact that the non-Mask Nazi may be exempt, or chooses not to wear a mask for other reasons, does not cross the Mask Nazi's tiny mind, nor does the fact that there is still no firm evidence for the effectiveness of masks in preventing covid spread.
Sue: I was in the supermarket without a mask and some angry hate-filled Mask Nazi screamed at me that I was killing the elderly.
Bob: Gosh... aren't Mask Nazis the worst?
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