WTF

Because after Monday and Tuesday, we all know the rest of the week goes W.T.F.
(Wednesday, Thursday, Friday) [def.2]

I was just on Crazy Things Parents Say, and I read this:

"WTF, well done!"
"What do you think 'WTF' means?"
"Wow, That's Fantastic!" [def.3]

Way to go, person. :)
So, in response to the previous post [kristin's], I say: WTF! (def. 3)
and btw: kristin figured this out a while back: WTF backwards is FTW. :)