When a woman is on top of a man during the act of anal sex, and she farts and tries to pretend it didn't happen. Also applies to men engaged in anal sex.
man and woman in bed, woman on top doing anal sex
Man: Oh, yeah, this is so good, bitch!
Woman: OOOOOOOOooooo yeah, I like it too. fart
Man: ...Did you just fart on my dick?
Woman: No baby, no keep going.
Man: Ahh, hell no. You just nutted all over me!
Woman: What? I didn't nut!
Man: Get off me!