"What?"

The word "What?" expresses the sense of puzzlement that every guy has conveyed to his wife or female friend when his stupid guy behavior has made her peeved. In our guyish innocence, we just don't understand.

The guy actor in this Hahn beer ad does it perfectly. (Click "Play Ad" at the left or download it first.) You may not have been in this exact situation, but you know what I'm talking about.