1. The Kwijibo Solution is the first thing you want to do - allow yourself to make up words. You have to be firm about this, since losing one battle can effectively wipe it out as an option for the rest of your life with the person. Frame it as a way for you to integrate an element of poetry into an awfully boring game - language is the peoples. Shakespeare made up words - imagine if he had to sit around and pretend to have fund putting little words in little boxes. I may or may not be Shakespeare, but there's less of a chance of being him if I stick to the stupid rules.
2. Cheat - go the bathroom or kitchen or pretend to get a phone call, let iPhone make your words. Keep extra tiles in your pocket.
2a. Declare yourself "banker" and take the tiles you want.
2b. Declare yourself "investment banker" and take a percentage of the value of the tiles. Propose confusing, non-sensical "mergers" for outrageous fees for yourself.
3. Turn the tiles over and write the letters you need on the back. This might be "cute" the first time, but more likely it will just make some people ticked off for ruining their stupid tiles.
4. Drink a lot, try to fall asleep, causing the game to end in a draw. Drinking will also help you go to the bathroom more, so you can look up words to cheat with in case someone wants to try to pull the "well I was ahead when you passed out" trick.
4a. Have them drink a lot, as it will probably lower their score and cause them to get disinterested in the game quicker and be more open to suggestions ("let's throw stuff off the deck!").
6. If you have some other lousy players around, you can introduce amendments to the rules (use Robert's Rules of Order), like adding a more random component, figuring out how to use a deck of cards or pair of dice (or Scrabbleship), or institute a 4-letter maximum and only allow "real" words that can be found in USA Today. I'm a big fan of the "modulo 6 rule" - all scores get converted to score mod 6, so the maximum you can score is 5.
7. Just hide the game, so you can pick something else to play that you are better at. But don't throw it away - then you aren't any better than the Scrabble players. Just hide it.
8. Buy the Scrabble-owner a Wii, so you can play that instead.
9. The passive/aggressive solution is to do things like "pass" on every single turn. If you do this, you'll quickly find yourself left out of a lot of things.
10. You can continue to play and suffer and if the person has an ounce of empathy they will notice that you don't care for it and they'll move on to something that you can actually enjoy or not enjoy together 9
If you withdraw from the Scrabble players and watch television or play Xbox by yourself, the Scrabble players will start treating you like you are completely beneath them - like you are an intellectual charity case. Eventually this will turn into ridicule and you'll find yourself in a shame spiral, at which point you'll need to go to therapy and find some new jerks to hang out with.
