A Classic Case of Transference

And my interpretation of some of the meaning, assuming this is about a guy and girl's relationship, apologies for any vulgarity.

The title, "A Classic Case of Transference", is referring to the girl's tendency to transfer blame onto anyone who will listen to her and her problems. "ran your dirty mouth, spouting out epitomes of nastiness" is probably alluding to someone who gossips and talks trash, creating problems. She "projects onto anyone that listens", either intentionally accusing someone of having the same problems she has, or unintentionally seeing herself and her flaws in other people. In most cases like this, a person projects on the people closest and most willing to give them a chance, eventually pushing everyone away.

"So get me off, then get off me, I've had enough of you... I don't know who you think that you are you've turned into a whore We can take this to the floor again I know that you're spent, but we're not finished yet"

Here, the girl has probably cheated without remorse. So, nearing the end of the relationship, he turns to use her like she used him, sexually because she seems to take sleeping around so lightly. So rather than blocking her out of his life, he continues to fuck with her but on his terms, rather than making love and being respectful like in a healthy relationship. In cheating and being a drama whore, she's basically reduced herself to a disposable pleasure hole in his eyes.

"If I could say one thing I'd probably have a conniption fit"

Have you ever met someone who won't let you have a word in edgewise? Especially while arguing? That's what I imagine in these lines. He's saying, if you'd just give me a chance to speak I'd probably have a conniption fit, possibly because he has so much to say and can't calm down and explain it in a linear, understandable fashion.

So that's it for me, I feel that the rest of the song is pretty self-explanatory. Great song, I think there are lots of people who can relate to a similar scenario.