Fat Arrogant Ignorant Little Cunt. Best used to describe that know-it-all that will proudly jump around saying "told you so," or "I wouldn't do it like that" etc.. They have no friends and will gladly make you look like a prick infront of the masses. Pronounced "FALC" with no "i" sound.
You really are a Failc. I never thought I would ever meet a Failc until now. Your Honour, this man is obviously a Failc! Two Failc's on the same day, I should put money on the lottery. You are the "Office Failc!"