That void of time, usually after getting wasted or very high, where you don't remember a goddamn thing.
Sue: "Wow! I just checked my bank account and I spent over a hundred bucks at the bars last night!"
Alison: "How the fuck did you manage to do that? I'm broke too...what happened?"
Sue: "I haven't got a fucking clue. I remember up to a certain point and then everything after that is like one huge void of whatthefuck-ness."