An indeterminate amount of time between now and never where time is both not and of the essence.
Hana: Can I have your help with shoveling my car out of the snow, James?
James: Just a second and I will be right there I'm a little busy at the moment.
Hana: On second thought I'll just do it myself, thanks anyway.
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?"