A game played in the car. When a car is seen with a headlight out, someone will hit the ceiling of the car with their hand and yell "p'diddle!" and everyone else must follow suit. The last person to do so must take off an article of clothing.
To stimulate the labia and clitoris of a woman to orgasm with a penis (erect or flaccid), yet not at any point during sex insert said penis into vagina.
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?"