Someone who likes the boys. Someone who described themselves as a "Jazzician" doesn't necessarily enjoy jazzmusic, but rather hanging around schools at lunchtime, wearing assless leather chaps.
"We were going to go to the pub with Ian, but he was busy as it was lunchtime and he was being a Jazzician.
(noun): some asshole who is so beyond wealthy that all he does is blow endless loads and makes millions and billions of dollars from doing it all day long for the rest of his life.
person 1: dude that guy just blew a load all over that girls face!
person 2: so?
person 1: he just made a billion dollars from doing that...