A female Teacher that dresses like a 'tart,' drawing the hormone-infused interest of her adolescent, immature, shallow male students, and likely that of their fathers as well.
'Did you see that tight sweaterMs. Lee-Harvey was poured into today? What a Teatart!'
Pousto-Tetarth is that one day of the year, usually a Tetarth (Wednesday in Greek) in which all the gay people in the school who dress emo or like the opposite gender, dress normally and nobody recognises them. For example, a very feminine boy would show up at Pousto-Tetarth wearing the most Chad outfit out there.
Person 1: Damn, have you seen the dyke chick? She got a whole glow up! She went from wearing basketball shorts and xxL tshirts into being a hottie!
Person 2: You're such a dumbass. It's Pousto-Tetarth you idiot. Ofcourse she's going to be dressed up like that. Look around you, even the fags are wearing off-courts instead of docs.
Person 1: Damn I thought Pousto-Tetarth was next week!
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?"