lol + wut, a corruption of what.
- (Internet, Internet slang) a response to a statement that is confusing, exaggerated, or idiotic
- "LucasArts says old adventure games "impossible" on DS, SCUMM says "lolwut?"" - Boing Boing, 2008 
- "Oh Hai! Icahn Haz a Blog? LOLWUT??" - Wired, 2008 
- "My first reaction was along the lines of "LOLWUT!" - Battlefield Heroes Developer Commentary