When you know exams/ essay deadines are coming up, but for some reason you just don't care enough to do any work, until at the last possible minute (oftern when it's already too late), the Fear hits you and you suddenly find the ability to work through the night and til the morning.
Jack: Don't you have an essay due on Friday
Jill: yeah but I can't do it, I've not got the Fear yet.
Ben: Hey,when was the last time you slept man?
Jean: Can't sleep... got the Fear.