One who is obsessed with a fictional character/celebrity/band. Fangirls are usually mistaken for stalkers.
I'm a fangirl, we don't do 'calm'.
by Master's_Kitten March 5, 2015
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a highly Knowledgeable, obsessive fan of a book/tv show/cartoon/anime
I am one of them....
"Look at that Fangirl buying up all the Salior Moon Merch at the Japanese store!"
by Fangirling_Beauty November 11, 2014
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A crazed fan that is a girl.

If you were to go in a fangirls room you might fine| posters, comics, cosplay outfits, fan art,stuff animal decided to that fandom, animes, manga's, fandom clothes, ect.
"Hey! What are you doing?"

The fangirl looks up for their fanfiction.
"Im reading Homestuck, the story at took my soul."
by AradiaMegido November 3, 2015
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The worst possible girlfriend. Unintentionally puts your feelings down by going on about how amazing male celebrities are.
Look at Niall's sexy arms! I Would so bang him if he'd let me! But I'm just another fangirl.
by XPT2000 April 20, 2015
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a girl who read a book or watched a movie or heard an artist or saw an actor that changed her life so she becomes obsessed and rights fanfiction and virtually stalks the person
famous actor :this girl cried when she saw me and I said hi

person :must have been a fangirl
by phanphscjjscjsnvdaeg April 15, 2017
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A stupid noob that likes fictional characters and tells everyone that if you steal her boyfriend, you will suffer
i am a fangirl, and if you steal sans from me, u will die
by MiroslavRD May 12, 2019
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A girl (for male version see fanboy) who is obsessed with something, ie anime (an otaku), books, or movies. Some are insane (literally) while most actually suffer from bullying, depression, social anxiety, etc, and try to block out their own lives using fictional universes. (And some are perverts. But we all know that because yaoi and yuri exist)
Maria is a secret fangirl. At school, she acts shy and normal; while at home she has a thriving yaoi tumblr page.
by GenericUser June 26, 2014
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