One who believes in the power of fashion. Fashionistas are typically either stylish women or homosexual men.
As an example of a successful fashionist government, they cite the period between Thanksgiving and Christmas in New York City (1999) almost religiously, in which local fashionistas overthrew the municipal government.
"Blacklist that sucker! He's a Fashionista! Keep an eye out because he'll either try to anally violate you or overthrow our government."
18 year old kid with rich parents and a decent life who acts like they have nothing and are nothing and are sad and Fashionably Depressed for attention.
From what i see fashioncore is the people that dress "hardcore"/"emo"/"rocker" and shop at places like H&M for everything but still hang around with "chavs"/"neds"/"townies" and listen to bands such as "Panic! at the disco"/"fallout boy"/"we are scientists" and some indie bands but actually know nothing of any music "deeper" than these bands and even then, only listen to these bands because they think it's cool and don't actually like it.
yesterday i saw one of THE most Chavvy girls in my school in a grey hoody with black spots on that they sell in H&M where i know plenty of people that actually like "emo"/"hardcore"/"rocker" music shop and that the shop is aimed at... or was aimed at... instead of the fashioncore fags that shop there now.
(that was abit of a rant sorry, but this is my interpretation)