Somewhat like a combination of a
biznitch and a putz, the term biznackle is most often used as a joking
insult towards someone.
Generally it is used towards those who
aren't quite "with it" and/or are being annoying in the context of the given situation.
Dan was making
jokes about gay people while we were in an important meeting, so I had to
slap him and say, "shut up biznackle."