Everyone knows the game Scrabble. You have the letter tiles and you make words on a board and get points. But you have to use words in the dictionary. You can't just make up words and win the game. Scrabble players are very strict about that.  

That's right. You can't just use the word "grawlix." Except, now you can. That word and about 500 others have been added to the game's official dictionary. With us to explain what "grawlix" means is Alan Stern, director of the Los Angeles Scrabble Club. He's been the M.C. nine times for the National Scrabble Championship.