As mentioned previously, KayTee is an all-around gamer and geek, and that includes MMORPG's. Also as mentioned, she is not above using her girlish wiles to get her opponents thinking about anything other than the game they're currently playing. So seeing how many people get the joke, when you flaunt the "license plate" on your perky little round "bumper" is just getting into people's heads, for her.