A fork of Rural Dictionary
You've reached exam time and you definitely should have been revising up to this point so you arrive at the inevitable result of having to force yourself into a deep state of learnings. The coma is usually brought on by a deep sense of fear and usually occurs after a fortnight of procrastination.
Man, I didn't revise at all over the last two weeks off, now I've slipped into a revision coma
*On exam day* I only started revising last night, I didn't sleep at all even though I was in a revision coma