Any store display or meandering checkout line meant to control your movement throughout the building, and simultaneously try to sell you additional items before you leave. They are usually a nuisance, and border on being a fire hazard in the event of an emergency. Such as preventing a quick exit from a building. Sometimes the displays can be so large you can't see if there are any available registers open.
This store is such a shopstacle course! It has all kinds of floor displays blocking the aisles and I have to wander back and forth through a merchandise maze just to check out!
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?"