The act of spitting the poo that your partner unexpectedly deposited in your mouth during a rim job (analingus) back in his mouth. Some people may like this, but, in general, it is thought to be an act used to get back at a guy for pooing in your mouth without warning.
Allison: Mid-rim job, he pooped in my mouth without any warning, so I decided mud blowing was the best way to get the punk back.
Katherine: He shouldn't have at that second Fiber One bar...
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. PenguinBooks,1992. p. 38)