Person 1: yo what's up dawg *hits funny bone*
Person 2: damn dog did you just get a Funny Boner
Person 1: no, What the fuck are you on about *said In very agonizing pain*
Person 3: *opens door* *yells down hallway* it's when you hit your funny bone so hard you get a boner
Person 1: Really?
Person 2 and 3: yea dawg fr fr
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.