For some overeducated in philosophy, like myself, particularly from the left (which I am not) Zizek is pure pleasure. It is inconceivable that Zizek's readers get all of his references, explicit or implicit, but that is part of the experience. And reading Zizek is an experience: his primary point is that human beings, try they may, cannot fully understand the world in an intellectual sense. You either get it or you don't, and either way, you won't get it all, but hopefully you'll get just enough to enjoy the first drop that leaves you wanting more.