2) To have sex with someone you find sexually attractive but loathe as a person.
3) To break up then make up and have a hate fuck. Its like make up sex but with someone you hate.
4) To have rough sex.
2) She may be a turbo bitch but she's insainely hot! I would hatefuck the shit out of her.
3) I love her but then I hate her, we're together but now we're broken up because of this our make up's turn into hatefucks.
4) If I was to see him now, with as pissed off at him as I am, I would totally end up hatefucking him.