When a person is waiting for some time, hoping, wanting someone or something to say or doing something while quite irritated about waiting.
When you schedule an appointment to meet with the school register for 1:30 and show up to her office but she’s not there. Then you have to wait 45 minutes until she come back only to realize she forgot you were coming. That’s a Finafuckinglly moment!
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?"