1. Sudden onset of tiredness, usually after being highly energized or inspired for a
long period of time.
2. A magical effect caused by the approach of
dawn, which happens at exactly the same time every morning, causing
people who have been up all night to suddenly get very tired, sometimes to the point where they fall asleep immediately.
"Yeah, yeah, irc is gre-*SLONK*- zzzz..."
"Now all i have to do is finish off the enemy with my
tanks while-*SLONK*- zzzz..."
"Sorry i'm
late, i was up all night and i thought i'd be fine for
work, but the slonk struck unexpectedly."