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1.
The act of taking one decently good book, and then splitting it into two sub par films. A common trend taken by Hollywood nowadays. Usually the last book is split into a two part film.
The act of Movitosis would be any of the included films:

Harry Potter and the Deathly Hallows, Twilight: Breaking Dawn, and possibly the Hunger Games Trilogy (MockingJay).
by Crab Eyes April 04, 2012