A contraction of sorts, combining two words: fucking and ignorant. A simpler and more direct way of describing a persons mental density, especially when there are small ears about that maybe shouldnt hear certain swear words. Usually reserved for those who excel at being ignorant, especially used on the road behind someone who doesnt know a turn signal from a canuter valve, much less common courtesy and basic traffic rules. Can be used in other venues and situations where a person displays stupendous amounts of ignorance far beyond that of mere morons.
Do you know what a turn signal is? What are you, fignorant?