it basically means "what the fuck" but funnier since if you get cut mid-sentence, you have to start over, making it 2x funnier than it was before, because that's how broken my humor is.
person no 1: "hey...hey, what the frick-frack snick-snack paddy-wack diddly-dack crack-pot slap biofeed back-pack slap thumbtack sidetack tic-tac do you think you're doing, sir?"
person no 2: "mind your own damn business."
omg who dropped their hotdog?
what the frick frack dick slap pussy ass buttcrack lackback stupidass cupid last cast best ass less bass is this stupid shit
boy watch your mouth before i frick frack diddily dack patty wack snick snack crack pack slack mack quarterback crackerjack biofeedback backtrack thumbtack sidetrack tic-tac out of you!!
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.