When an emo kid, especially one about to become an hero, enters a trance-like state, and begins to build the rage. After the sleep-like state subsides, the emo will begin to raucusly attack those around it in a blind rage. Examples can be found on youtube under "Zack Freaks Out"
Zack Starr is entering emo sleep, better run before he freaks out and shoots us!!!
What you say to someone when you have no idea what to say, or when you want to insult them in a way that they have no idea what you're calling them or you have no idea how to call them dumb.
Suppose you forgot about a historydefinition at night. And then you sleep . After waking up in the morning,you suddenly remember it. This is the sleepember effect