generally, a Peter Pan is someone who will never grow up.
Mick Jagger of the Rolling Stones still lives fast like he did 20 years ago. He has eternal youth. He is a rock and roll Peter Pan.
by I Saw U2 Live Twice December 23, 2006
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Verb - When someone jumps out of a high window with no regard for safety.
This guy today in Crown Heights did a Peter Pan out of a 20 story window splattering himself all over the street.
by NJPRNVA November 01, 2014
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When doing a girl doggy style the penetrator puts his arms on his hips and continues thrusting as usual thus creating the Peter Pan persona. Once the position has been assumed, Peter Pan should start quoting lines from the movie such as "Just think of happy things, and your heart will fly on wings, forever, in Never Never Land!" or "All you need is thrust and a little bit of pixie dust!" or "If i were you, I'd surrender!".
Leslie told me that her boyfriend started yelling something about Never Never Land during sex last night. I think she got Peter Panned!
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A Peter Pan is a perpetual loser, typically a guy in his 30s that still lives with his mother with no intention of ever moving out or getting a job because his mother has supported him all of his life.

A Peter Pan is an individual that has possibly managed to get a girlfriend beyond all of this, to which she thinks she will be able to change him, but without a reason to change he will most likely stay a boy forever. Any attempts the girlfriend attempts to leave the toxic relationship are met with threats that the Peter Pan will commit suicide and other narcissistic behavior and "gaslighting", such as implying that she made him the way that he is. The girlfriend is essentially fulfilling the role of second mom.

Though a Peter Pan may have a job, it is most likely low responsibility and minimum wage that he does the bare minimum to keep.
Friend 1: "It's a shame what that girl is going through"
Friend 2: "She's in a relationship with a Peter Pan, she'll die with that loser"

Friend 1: "Just got a dick pic from some dude, he is kind of cute though"
Friend 2: "Girl beware! He is a Peter Pan"
by Hellhammer13 April 07, 2017
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An amazing boy who doesn't want to grow up. He normaly lives in Neverland. He also is friends with a fairy called Tinker Bell.
I love Peter Pan so much! I'll leave my window open tonight, and i hope he'll come rescue me from this world...
by lostgirl132 August 18, 2015
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A person who never grew up. Shows very disturbing anger and emotional baggage. Walls themselves up from co-workers and friends and is completely anti-social.
Dr. Phil: "Amy, you must get a hold of your inner turmoil. You need to not show your emotions as anger. You, Amy, need to learn to control yourself. Amy, you have Peter Pan syndrome. I don't know if you realize this, but you really have it, and are now resembling the character Peter Pan. You need to grow some tits."

Amy: "F-you, Dr. Phil! You bald headed butt-munch! I don't have any problems, and how dare you refer to me as Peter Pan!"

Dr. Phil: "Amy, you dress in green tights and have short bobbed hair, and no breasts, I guess tits was a little too harsh."
by T_rump_supporter April 19, 2013
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Jimmy Machan is THE orginal Peter Pan. And the best.
Jimmy Machan is Peter Pan and he knows it. (:
by @MaddieStack follow me August 29, 2009
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