That's the fratboy method: You're in bed, after you fucked her. That's a good moment to make the most loud, wet and nasty fart ever. Hold the bitches head under the covers until the smell is gone. Hopefully she will pick up the hint that she needs to leave.
Dude, this bitch would not shut the fuck up after I fucked her... so i gave a nasty wet mexican oven to shut her the fuck up.