A metrosexual is a guy who takes great care in his clothes, how he looks, and is what people would consider a sensative type guy. It's a guy who would be stereotyped as gay but is actually straight. It doesn't mean he wares girls clothes or acts like a girl, just that he takes care of himself more as a girl would, nice clothes, gets his hair done, not your typical burping, insensative, sporty guy.

My fiance got labled as one just the other day because he always wares nice button up shirts, nice jeans, and always takes time to be groomed and stylish. But he is not from America and where he comes from in Europe style and appearance are very important so the word caught him off guard too.