When you hear the word "horchata," what comes to mind? I'm sure the answers will vary. The most literal-minded of you will think "rice milk," some of you may simply associate it with the concept of the "taqueria," while others might draw a complete blank. I for one can't get the image of the mouthy whores of the Mission district out of my head. Not that I associate them with actual drink, it's just the phonics of the word that lead me there.