1. A segway leading to a good thing or immediately proceeding a good thing.
2. An exclaimation expressing joy or satisfaction in a situation. Usually is based on the humiliation of another person, much like pwned. Correct use involves a long rant or insult with "bickitybam!" added to the end.
So I was making out with this girl at the party, bickitybam, we're back at her place makin nasty."
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?"