Just Add Water 24 hour play project (noun) 1. the dissolving of one's reputation and the chance of making it with the hot girl on karaoke night 2. over-caffeination 3. the process by which five new plays are created from scratch in the span of only twenty-four hours 4. death by impalement upon sharp rocks. 5.(slang) flight; a filling of the creative channels of the soul 6. immortality, in ten minute increments 7. theatre without training wheels 8. (old english) a hell of a lot of fun.