Combination of WTF and FTW, making WTFTW, or What the FuckFor the Win, usually referring to something random and deserving of a WTF, but being cool or funny enough to deserve an FTW as well.
"Hey, I juststretched a 300 word essay to 1000 words!" said Bob. "WTFTW!" I replied.
wtf ftw stands for "what the fuckfor the win".
Some users use that "word" when they are angry AND happy.
That sounds weird, and it is so too ;-)
But sometimes somebody uses that just for fun.
User Y: WoW ftw!
User X: lol...WoW ftw? xD
User Y: wtf ftw!!
User X: omg -.-"