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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To creepily watch/stalk someone, generally someone with whom one is in a relationship, systematically removing them from other friendships in an attempt to render them utterly incapable of independent action.
A: Don't look now, but I think Dave is watching you from the bushes.

B: He's just making sure no one gets too close.

A: He's totally Cullening you.
by thebestlunchtableever February 17, 2010
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A newly formed religion based around the Cullen family from Stephenie Meyer's Twilight series.

Headed by Carlisle Cullen, it consists of Jasper and Rosalie Hale, Edward, Esme, Emmett and Alice Cullen.

It has a large following and includes many worship songs, stories and general prayers.
Worship Song of Cullenism:

"Carlisle is awesome, Esme is cool, Alice and Jasper totally rule, our love to Emmett and Rosalie and Edward too for eternity."

by Twi-hards down under July 20, 2008
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Conducting informal reconnaissance in an unintentional manner.
My cousin and my girlfriend were Cullen all up on my Facebook.
by Captain Sparkle May 1, 2012
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(n)A fictional character from a teen novel whose fame is ill won.
2. What teen girls and some older women will model their future boyfriends after, thus crushing their slim hope of having a functional relationship.

See Also; Sparkly Vampire
by Kore-wa Watashi-desu February 26, 2009
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Real Version: Terrifying creature of the night who hunts humans and sucks their blood.

Twishite Version: Sparkly fruit who may or may not fall in love with a human whose arteries are full of his personal crack.
by [Name Lost] April 16, 2010
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To drive very fast, like the vampire family in Stephenie Meyer's Twilight Saga
The highway was empty last night so I pulled a Cullen (Cullened).
by Amanda J. December 4, 2008
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