Anything pretentious. Molecular gastronomy, foams, etc seem to be the worst offenders but at the other end of the price spectrum, the coffee world certainly has its own share of pretense too. I want to eat my dinner, not interpret it.
I like food that tastes good, and it doesn't really matter to me whether a food critic approves of it. Do I like the food at the Waldorf Astoria? Sure do - and I like a burger at Wendy's, too!