a girl/gue who is completely oblivious to a guy/girl who loves her and constantly flirts with her but she has no clue and thinks they're just friends and always will be.
Mark hung out with Susan all the time. They went to the out just them and everyone (including their parents) except them knew they were meant to be and were going out. Neither of them could face it because they were being eifbesuns.
Another way is if Mark liked Susan and Susan would talk to him, spill her heart and them become best friends when Mark was secretly in love with her and she was blind to it, or chose to be.
eift (or eifting), a derivative of sift, refers to when someone attempts to display copious amounts of affection to everyone (hence the e). The word often refers to people in administrative positions of power that exploit their advantage to make unwelcomed sexual advances onto people below them in the workplace-hierarchy. Eift is often referring to physical sexual harassment rather than light-hearted flirtation. In short, eift means "sexually harass multiple people".
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?"