Anyone who disagrees with you on anything. The word has lost all meaning to people just throwing it out at
random people on reddit,
tumblr, and
twitter. It no longer means you believe in the word of Nazism, but more you don't believe in things like dreamgender, other opinions, or otherwise.
Person 1: Hey did you hear about
Popular person on
twitter?
Person 2: Yeah that Nazi decided to post some less than ideal
shit.
Person 1: Nazi's killed millions, they weren't called that because they didn't agree with someone online.