what the fuck

1. An expression of extreme surprise.
2. An expression of extreme annoyment or frustration, usually after a recent chain of bad events has just been added to by something that just happened.
3. A more emphatic form of "what".
4. Roughly translates to, "I tire of considering this decision and will go ahead and do what I was thinking of doing originally." Synonymous with fuck it.

exaggeration of the word "what", which expresses an interrogative attitude of the speaker, in many ways.

Variations:
"the fuck" -part is exchangable with "the hell", "the heck", etc.
"what" is exchangable with "who", "where", "when" etc.

a phrase used when ever the fuck you want to use it.

An expression of extreme anger, shock, or disgust. Especially applicable when you discover an unwanted person hiding under your bed for the sole purpose of scaring the crap out of you.

An expression first coined in the 1983 movie "Risky Business" when supporting character Miles (played by Curtis Armstrong) tells the main character Joel (played by Tom Cruise) "Every now and then, say 'What the fuck.'" meaning throw caution to the wind and take a chance. This form is rarely used today, overtaken by the more prevalant meaning of surprise, disbelief or confusion.

A saying used to express pissed-off-ness. Or it can be used when in disbelief.

Usually said when something totally unbelievable happens, or utterly disgusting.