what does it mean when someone says "what the hell!"?
87508
Saying "What the hell" could be like, saying "oh well, I have nothing to lose" or it could mean "what on earth is this" or "why did that happen". Usually, it's used when someone is astonished.
117432
WHAT THE FUCK ARE YOU SAYING
641108
Literally it translates from the Spanish as "What barbarity!" (and it's two words, "que barbaridad," not one, in Spanish as well.) But as the others pointed out above, the phrase connotes an expression of disgust or shock, akin to "That's terrible!" or "How awful!"
645091
It means don't hold your breathe!
1161678
It's a euphemism for "damn hell" originating in the late 19th or early 20th centuries, when many such euphemisms became popular, such as\n\nGee whiz\nGosh darn\nCrimeny\nJeez\nDash it all\nHoly cow\nHoly moley\nCripes\n...and many, many, many more.
335210
what the heck are u talking about?
594877
It means mess with me or die!
444107
What in the hell r u talking about?
328629
"What the h*ll do you think ur doing?!?!"
551939
What the hell did all that mean?
1074903
What the hell are you asking?
909958
WHat - I dont understand !
173189
what the heck are you talking about?
1112291
I cannot even type what it means...it is so bad.  Tell them NO!
1121809
We are saying that because we don't have a better "come-back."  It's means, "I don't care," even if the person really does care.  \n\nNowadays, people say it when they can't think of anything better to say or when they have been "beaten" in a discussion or an argument.  Saying "whatever" makes it seem as if the person doesn't value the topic as much and dissociates him/her from the topic, so the person can maintain their self-esteem.  Basically, it's a cheap way to get out of admitting that one is wrong.
977361
It means 'You suck and you are no good'
1033118
WTF are you talking about?