A girl with no pictures of her that expose much/anything below the neckline--the insinuation being the presence of weight or general body-image issues. The term can be altered for a male of the same nature.
A: Hey, how come this girl doesn't have any pictures of her whole body? All her pictures are just different angles on her face.

B: That one girl Tommy just started dating? Yeah, she's a neck-up girl.

A: Aw, man. Good luck, Tommy.
by Defnot January 13, 2011
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When a person takes a face selfie because from the neck down they’re busted.
You see that girls selfie , yeah but she’s only a neck up fuck !
by Crookchaser June 17, 2019
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some one how is so dumb that stupid no longer can describe them accurately
Jimmy : dude that chick is dead from the neck up
by the-insult-master January 4, 2017
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Suggesting this is a way of saying someone is talking or acting crazy. Used to express disbelief, skepticism, or simple mocking. Indicates a level of ridicule serious enough to move the subject away from what the other person has said, and onto the state of mind of the speaker.
"If you think you can get away with driving 50 more miles with the 'Empty' light on, you need a checkup from the neck up."
by Feb June 22, 2006
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Used of someone who is living beyond their means. Their wealth is purely in their head and implicit in their attitude.
She can't afford the rent and just bought herself a state-of-the-art computer system on credit. She's rich from the neck up.
by Fearman August 9, 2007
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A person who is an idiot. A person who has a mental handicap. The term is used to describe those that are not "mentally retarded", but just stupid, like your dumb friend or dumb co-worker. It is not meant to be derogatory to those who are truly "mentally retarded."
I'm sick and tired of hearing about Jane's dumbass excuses for skipping out on work, she's just handicapped from the neck up.

Brian tried to jump off the roof with an umbrella and fly, but he just broke his legs. Yea, he's handicapped from the neck up.
by Beauxgrass July 10, 2010
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