An FFJ is a Full Fledged Jerk -- not just a jerk at this moment because of
something he/she said or did, but a jerk
all the time; a person who doesn't learn from their prior jerk-like actions or statements; a/k/a a person who is either too proud or too stupid to stop being a jerk,...even for an hour. This person is a classic example of someone you can dress up, but you can't take them anywhere, rather like a real pig, the actual
filthy animal. This is the type of a person who regularly hears, "You are such a jerk!" but doesn't care enough to do anything about it.