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1.
(n.) someone who is obsessed with the Twilight saga; a combination between "Twilight" and "Obsess", insinuating that the person is obsessed with Twilight; (adj.) a word to express how attached a person is to their beloved Twilight saga.
Examples:
(n.)"Look at all those twi-obs - I can't believe they're sleeping outside the movie theater for the Eclipse showing tomorrow night!"
(adj.)"You're going to bring a life-sized cardboard Edward Cullen in the theater with you? You're so twi-obs."
by Novelist Anonymous June 07, 2010