"Defenestrate", meaning to throw out a window. I learned it in history when we studied the Defenestration of Prague, and I just love that such a simple act has such an official-sounding term describing it.
"Vapid". It's one of those words that just sounds exactly like what it's describing.
"Contempt". I usually use this word to describe my feelings for art that I hate and everyone else seems to like, such as anything written by Andrew Lloyd Weber, Charles Dickens, Forrest Gump, and those god-awful "paintings" by Thomas Kinkade.
"Bittersweet". A quality possessed by most of the world's most beautiful things.