Someone who is degenerate or is as morally low or lower as a degenerate. Its origin is on Family Guy when Peter makes up an insult to counter the term "degenerate" which he believes is also makes up.
One who is - at the same time - fastidious and idiotic. A Fastidiot will demonstrate a meticulous, sensitive, or even demanding attitude, paying great attention to even the most minute details, while concurrently displaying the idiotic tendencies of a person with a remarkably low intellect and with a poor (even horrendous) capacity for decision-making. Fastidiotic behavior is often demonstrated by individuals exhibiting signs of Stolevrusny.
My buddy Stole is the biggest Fastidiot on the planet. He is a highly-successful professional, he eats healthy and stays super-fit. His car, home and office are all meticulously clean and people joke that he lives an almost monastic existence. And then, every f-ing weekend the guy takes some insane off-ramp straight into the abyss, making decisions as if he is a homeless guy living on the street with no consequences for his actions.
A term that is generally equivalent to tool and douche bag, but used to describe people with an extra-strong sense of undeserved self-importance.
Festizios are often talented individuals, but their accomplishments are always overshadowed by their over-sized egos and tendency to believe everyone love them.
Drake: Dude, we won our lacrosse game yesterday and I had 2 goals!
Matt: That's awesome, nice job Drake!
Drake: I know, there's a reason I'm team captain and all the girls want me.
Matt: ya, cool Drake {walks away and talks to another guy}....God, Drake is so cocky.
Brett: Ya, everyone knows hes a huge festizio.