V-Nazi is short for Vine Nazi. It has nothing to do with fascism or Nazism. A V-Nazi is a Viner who makes offensive vines.
A guy who makes a lot of 9-11 jokes on vine is a V-Nazi
by Your everyday Crimean Tatar August 16, 2016
A modern Nazi on the internet who hates Jews, faggots, black people, and spics
Wow look at that V Nazi on vine such a hater
by DA,urb'nLIFE45 August 27, 2015