While seeming as a word a retard would use, beticus actually means “bet” or “no way”. If you don’t believe someone can do something, you can say beticus, which is often paired with theticus. Theticus has no real meaning, but makes the word Beticus sound better. Has become a meme in Ridgewood New Jersey, and May live forever.
A word originally invented in the early 2000s, it has grown to be one of the most useful terms in the Urban Dictionary
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?"