The process of sticking one's hand, in the shape of a bird's mouth, into a man's ass and proceeding to dig into his ass. If done correctly, the man will be stunned and completely immobile for at least five seconds. Does not work on women.
The process in which you run and a naked person and flip into a handstand in front of them while you are naked, plowing your penis into there mouth with no consent, then you take there penis in your mouth and give it a good pumping.