A person, usually female, who has an obsessive attatchment to the movie Twilight and/or Stephenie Meyer's Twilight Saga. This person is someone who has taken a liking specific to one of the Cullen's, most commonly Edward Cullen.
Alyssa has plastered Edward Cullen's pictures all over her bedroom wall. Her friends refer to her as a "Straight-Up Cullenator".
by TheCullenator November 11, 2009

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