When something strange or inexplicable occurs (usually when observer is on a substance), it can be called a "seize up".
When something of an extremely weird nature occurs, it can be called a "horrid seize".
This term was originally coined by the few that got bare stoned in hughberry's forest of wonders back in the day.
"I was on shrooms and i looked up into the sky and there was a Buddha made of clouds. It was a seize up."
"I can't physically move, this is a horrid seize."
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?"