Rambose
A mix between verbose and rambling, used to describe a talkative person who's clearly intelligent in his or her field, but is completely unaware of how clueless everyone else in the room is.
I can't believe I was in a room for 2 hours with Todd. He talked for nearly the entire time about his reverse-polarity capacitance resitortron. He's so rambose, and I don't think anyone in the meeting knew what was going on.
Rambosity
Displaying or affecting the characteristics commonly associated with the fictional character Rambo.
Gleefully wielding his battle rifle, Cletus swept through the horde of rabid Agilex-trained sex-zombies with a rambosity that had never before been witnessed.