When a person you are dating/hanging out with suddenly disappears with no warning and/or without a trace. Derived from the way Punky Brewster's mother abandoned her on the TV show by saying she was "Going to the store for a minute" and never came back.
Whenever someone in a seemingly good mood goes bipolar and starts throwing objects on the floor and screaming like a banshee as to make their point, kind of like kid's in the grocery store who aren't allowed to get a candy bar.
Inspired by my history teacher's wonderful meltdown in front of class today.