1. An exemplorary individual who tries to get over on anyone and is out for their own selfish ends.
2. Abbreviated form of the timeless classic: Mother Fucker. This robust adjective, noun, and pronoun is not limited to persons who have fornicated with their mothers.
Sam "Yo, did you see the budget proposed by the republicans?"
v. The slang term for beating someone up. Something someone threatens to do to someone who pisses them off. (Never used nicely, but can be used in a joking manner from time to time.)
When you get really pissed off with someone, you can use this word. For example, "Dude, if you do that one more time, ima fuggabichup!"
It can also be used as a direct threat: "Don't make me fuggabichup!"
Not only can it be used on an individual basis, you can use it to address a large group of people: "If y'all don't learn your sh*t real soon, ima fuggabichup! No, ima really fuggabichup, fo sho!"