When someone uses a Sticky Dildo and places it on the edge of the door in between the knobs and puts their legs over the knobs with the dildo inside of them and start fucking it violently making the door swing back and forth.
guy 1: "Dude, it was the hottest thing ever last night, my gf let me watch her while she was doorfucking."
guy 2:"You lucky bastard my gf never does that shit for me."
An incredibly ugly, unattractive, rude, stupid looking, or dumb person.
Guy 1: I was at a restaurant, and then this big ol fucking doopfuck walks over and starts trying to start shit
Guy 2: He sounds like a real uglyasshole
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.