The act of someone relentlessly trying to force their fetishes on you, letting you see things you wouldn't want to see otherwise. The individual is often depraved, very lonely, and is willing to strike whenever randomly horny. There is a higher chance of individuals appearing like this within fandomships.
person 1: Man, I was just trying to relax and play some minecraft when (person 3) pings me with a video of him getting it on with his dog.
person 2: He's the kinda guy to pull a howl?
person 1: I don't think I'm gonna be able to sleep for the next couple nights, dude. It's not ok.