Where a female first takes a shit before sex and doesn't wipe (most likely will be used as a joke). If the female is then being eaten out while she is on her hands and knees, the male's nose will be covered in the woman's un-wipped shit.
Man: So, my wife brown nosed me the other day.
Man's Friend: Really? How'd it go?
Man: It SUCKED!! I don't know what possessed her to do that! It was disgusting!
(Man's friend laughs as he nonchalantly texts everyone he know's about it)