what the fuck—used especially to express or describe outraged surprise, recklessness, confusion, or bemusement
And they say I'm an unelected despot? WTF? Rob Long, National Review, 28 Mar. 2005Even though he is accused of a reprehensible crime and gave that blank death stare to a judge at his first arraignment, there is something very vulnerable about this guy; almost like we can see that the WTF countenance masks a very troubled soul. Stan Simpson, Hartford (Connecticut) Courant, 5 July 2013… the first episode back features a WTF twist that leaves her at death's door … Damian Holbrook, TV Guide, 14–20 Sept. 2009… an event showcasing the king of WTF foods—the food item that wins the crown for most bemusing common ingredient in the Chinese culinary vocabulary: The humble holothurian, better known as the common sea cucumber. Erin McKean, Wall Street Journal, 26 Nov. 2011