The act of rambling on about random topics because you are really drunk and/or high.
you were jukeboxing on the way home from the party last night, talking about midget strippers, where plastic cups come from and what size jessica's bra is, you talked during the whole 30 minute drive home about that stuff.
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.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"