The incredible amount of fatigue one feels after playing hours of flappy bird. Your overall day begins to deteriorate as you think to yourself why you couldn't get past your currently highest pipe number.
Abdullah: Dude you look exhausted. What's going on?
Zeerek:: I've got flappy bird fatigue because after playing it for 2 hours this morning while Karen was giving an HR presentation. I feel completely wiped out, but all I want to do is keep playing.