FFC is an abbreviation of the term "Fat Fucking Chud" Chud meaning an unattractive person with an egotistical personality, although in most cases is just used as a replacement for loser despite its definition
Dude, stop eating all of my food and goofing all day. You're such an FFC
A bunch of nerds who sit around in the aol chat room Final Fantasy Chat. Proclaiming they are gods and ejecting 'newbies to the chat' because of the massive amount of arrogance that pulses through their mortal souls.
Newbie: "hei, who u lik n ff7"
Regular of FFC: "Dude, gtfo ->
-->
---> -ejects-"
Online host: Newbie has left the room.