1 definition by Fuyu Tenshi

A fangirl is mostly described as a woman between the ages of 14-17 with an overobsession for something that is not real, is real (but is unlikely possible to hook up with him), or maybe even both things of the matter. Most of them screams words such as "OMG, HE IS SO HOT" or "HE IS SUPER CUTE BEYOND BELIEF! MARRY ME BABY!"

Not all fangirls are as awful as the ones of the rabid fangirl. Some fangirls can be actually be QUITE smart and cute, and sometimes can even control their extreme OBSESSION for the person of their affection. Most of the times, I am alright with these kind of fangirls.

Also, rabid fangirls tend to also hate the person that is around the person they obsess over.
A fangirl spots Winry (of FMA) trying to fix Edward's (also from FMA) automail:

Fangirl: Ah, that's so cute! <3 You to keep working!
Ed: Oo;
Winry: Okay... *looks ver confused*

On the contrary, RABID FANGIRLS:

Rabid fangirl: GAAAAAAAAAAAAAAAAAAAH!!!! YOU STUPID BICH!!! SLUT GET AWAY FRUM MY MAN!!! EDO IS MINE!!!!!!!!!!!!!! MOVE IT!!!!11111
by Fuyu Tenshi November 4, 2006
Get the Fangirl mug.