Worse than being friendzoned. It is when you are straight and your crush slowly involuntarily reveals through her actions that she believes you are gay and therefore has no attraction or consideration towards you.
Timothy: I asked to hang out and she invited me to her sleepover.
John: First week meeting and she already got you gayzoned.
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?"