When something evokes such a strong emotional state that you pee your pants, but it is entirely acceptable because the event is so grand. IE: You laugh so hard you pee.
#1
Ted: Dude, be prepared to laugh... check out this YouTube clip!
Ned: *watches* OMG! LOL! LMAO!!!! Dude! That was totally peeworthy, I couldn't catch my breath!
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?"