A pretentious film, movie, TV, or food critic. Has little to no real knowledge of film criticism, music theory beyond a few blurbs they read on Rotten Tomatoes or IMDB, etc yet gives condescending or trollish advice on internet message boards about how everyone else's taste sucks.

Often associated with hipsters or other "counter-culture" niches who think that dissing anything "mainstream" automatically makes them looks smart or "deeper" than everyone else, but in reality they end up looking more like a self-caricature.

Similar in many ways to the armchair philosopher, armchair comedian, armchair politician, etc. As a result of spending too much time online and having only very stupid people to compare themselves to, they develop a false sense of grandeur in spite of their mediocrity.
Tom acts like he's an expert on movies but in reality he's just an armchair critic.
by Anon989989 January 8, 2016
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