Wired just posted up this hilarious article:
Bluff a Music Geek
Ever been smacked down by a friend with an encyclopedic knowledge of music? You can fight back without really having a clue.
Adopt obscure tastes. So obscure they're nonexistent. Tell your friend you're a big fan of the Egyptologists or some other made-up group. (What's he gonna say — "I've heard of every band, and that's not one of them"?) If he can't get a handle on your palate, your opinions are unimpeachable.
Answer questions with questions. "I think I've heard of Flop. Who was their manager?" Checkmate. It's surely not your fault this so-called fan can't provide enough background info to help you pluck Flop from your mental jukebox.
Use the magic words. To paint bands you know nothing about with broad, meaningless strokes, you need only two adjectives: overrated and underrated. With careful use, you can position yourself as a sophisticated critic of criticism, a qualified judge of not just music but the canon itself. Leg-sweep your foes with baffling pronouncements. The Beatles? Underrated.
I Know You Are But What Am I - Mogwai