That is the meaning of das Ding , which Lacan brings in from Freud's text, as a sort of Witz. I cautiously dubbed the fourth paradigm the fragmented jouissance , though I can stretch it up to normal jouissance . Let me refer the fourth paradigm to Seminar XI, The Four Fundamental Concepts of Psychoanalysis . In The Ethics you have a layout of jouissance 's massiveness as though positioned in a place normally out of reach. It calls for transgression, for a forcing, in an abyssal place, transgression being the only way to access it.
Subject is what is conveyed by means of a signifier for another signifier.
The fact that no identifying representation is ever complete allows for the representation to repeat itself. The sixth paradigm is essentially grounded on the non-rapport, on the disjunction of the signifier and the signified, of jouissance and the Other, of man and woman as there's no such thing as a sexual rapport.