Fangirling 

The act of when a girl who is extremely passionate and crazy about a certain book or movie squeals/screams hearing about the latest info.

Mike:Did you see Brittany when she heard about the latest Hunger Games movie?
James: Yeah, she started fangirling the second she heard it!

Fangirling by MiniMe5701 June 30, 2014

Internally Fangirling 

The way a mature adult can still lose her shit when encountering someone worth fangirling over.

I was internally Fangirling, but held my composure in a professional manner.

Internally Fangirling by Sealey3 June 26, 2014

Fangirlgasm

Anytime when a fangirl expresses an overly excited opinion about something in their fandom. Whether its Amy and Ricky kissing from Secret Life, to Naruto finally going down on Sasuke.

On message boards you can usually tell when they post the dumbest things towards something.

Girl:If Amy and Ricky kiss I am going to freaking flip! I will probably clap and run around screaming to the world!!

Unluckybystander: That girl is suffering from fangirlgasms

Fangirlgasm by Unit7 July 21, 2009

obsessive fangirls 

A girl who goes over the top as a service to her favorite person/thing.

"Did you see that fangirl at the anime convention? She had on this gay Naruto costume.

obsessive fangirls by Atomisk May 13, 2005

fangirling 

fangirling is in short the female equivalent of a "boner" the natural instinct that drives animals to breed. while talking about a "boner" is considered weird for obvious reasons fangirling is considered normal cute or at the very least annoying.

omg i totally fangirled when he took his shirt off. i started fangirling when he was singing.

fangirling by jerm200 July 5, 2016

Fangirling 

The feeling of getting electrocuted.

"(Insert famous person) SAID MY NAME AND I WAS TOTALLY FANGIRLING"

Fangirling by Wraegan November 23, 2015

Fangirls 

Obnoxious female fanatics. These obsessive and insufferable bitches will latch onto something for superficial and often stupid reasons and, much like leeches, will kill it slowly until it is uncool. They are easily spotted by their over-zealous dedication for a subject of pop-culture, self-described "nerdiness" and stupid t-shirts. Current victims of fangirl audiences are shows such as Doctor Who, Sherlock and Supernatural but they will soon will draw their attention to Game of Thrones or The Walking Dead

Fangirls are what killed Doctor Who.

Fangirls by So-Called Person August 28, 2013