fansir 

A fanboy who is much to polite and mature to be called a 'fanboy'

The fansir laughed and chatted with the other fanboys, although, deep in his heart, he wished there were others who appreciated the same television shows he watched, and had his same intelligence level.

fansir by AFanBoyCameAndCorrectedThis July 15, 2014

Fanspreading 

When a woman takes up more room than is strictly necessary on public transport.

"Excuse me madam, would you mind not fanspreading, it makes me feel uncomfortable"

Fanspreading by Lucas Lucas October 26, 2015

Fangirlioma 

A disease which is transferred by exposure to art-sharing websites, undertale, and any game that you can fangirl over.

Oh my god, I think she's got fangirlioma!

Fangirlioma by uhhhh.wav December 17, 2018

Annoying fangirls 

Girls from age 3-19+ that go apeshit if you say

*said name* uses too much audiotune

*said name* has a tiny dick, I have a bigger one, and I am a girl

*said name* smokes too much

*said name* is a fuck head

*said name*'s music sucks

Person 1: I fucking hate Wiz Khalifa
Fangirl: FUCK YOU WIZ IS AWESOME!!!!
YOU ARE JUST JEALOUS BECAUSE HE HAS MONEY AND WEED. BOTH OF WHICH YOU DONT HAVE!!!!!!11112224qraqgzdgdsgjkshgsdlkaghkgfasdhfashfjz

Person 1: Justin Bieber sucks
Fangirl: STFU HE IS AWESOME I LOVE HIM *hearts*
Me: Girl, STFU you are only 9 and he does suck.
--
BWEARE OF "Annoying fangirls"

Annoying fangirls by BieberNeedsToDieTODAY August 15, 2011

sans fangirl 

a screechy terrifying young girl who scares the living shit out of me
also a lil' bitch who will kill if you even mention sans not being real

Me: did you see that sans fangirl
Sans Fangirl: WAT U SAY ABOUT ME

sans fangirl by Whyjust...why June 23, 2017

fangirl attack

When a super fan of a particular form of media, such as a music group or television show, begins to obsess over said media to an extreme. These attacks are usually brought on by events like a favorite character dying or their OTP finally getting together (or in extreme cases breaking up - this is an extremely dangerous time). If you come across a fangirl/fanboy while they are having a fangirl attack, DO NOT ENGAGE. They are extremely emotional during this time and could even become violent. To avoid any unnecessary injuries, walk away slowly and leave him/her to cry in peace.

Girl: WHY DOES THE WORLD HATE ME ?!?
Boy1: What's up with her?
Boy2: She's having a fangirl attack. We'd best leave her alone before it gets out of control.
Girl: *crying in front of her computer screen*

fangirl attack by theinternethasruinedme April 5, 2015

Twilight Fangirl 

Twilight Fangirls (TFs) are typically young, fanatical female fans of the Twilight series of books/films & may be identified by their Hot Topic Twilight tees. TFs travel in small organized groups, or at Twilight-sanctioned events, in larger unorganized packs. Ear protection is a must for bystanders when more than 10 TFs have gathered. TFs should be approached with caution by non-Twilight fans, and safety guidelines should be followed. NEVER state aloud that you are not a Twilight fan, have never read the book(s), or find 'Breaking Dawn' unrealistic in any way. If threatened, back away slowly & repeat calmly "I read the Isle Esmee chapter 27 times!". TFs' greatest wish is to stalk the set of any Twilight film, or - SQUEE!!! - to meet Robert Pattinson.

Twilight Fangirl #1 "OMG, did you hear Rpattz is on the set in Vancouver?"
Twilight Fangirl #2 "I KNOW! Let's go camp outside his hotel (or the hotel we THINK he's at) for 3 weeks!"
TF #1 & TF #2 "SQUEEEE!!!"

Twilight Fangirl by bikechick August 14, 2009