allnighter crash

The moment an allnighter high disappears, leaving you feeling like a hollow shell of a man (or woman), filled with regrets. Can happen instantaneously; one minute your waxing philosophical about the oeuvre of David Cronenberg, the next minute you're lying on the ground sobbing. Usually followed by an impenetrable midday nap.

Greg was doing fine until his allnighter crash kicked in. Now we have to hide the good knives...