Top Definition
These are the girls who aren't real fans. They're incredibly annoying, have never looked at a dictionary, and tend to abuse the caps lock key. Mainly in the tween age group, it is very easy to tell when one is a Jonas Fangirl.
They are obsessed with the Jonas Brothers looks, and get mad when someone dates a Jonas Brother (other than themselves.)
Occasionally, they even yell at other fangirls who think a certain Jonas is theirs, which has led to many arguments. If someone says their opinion and happen to not like the Jonas Brothers in any way, the fangirls have a spaz attack and attempt to insult the other person with unintelligent remarks.

Not to be mistaken for a NJF (normal Jonas fan.)
Guy: I don't like the Jonas Brothers music, they suck at singing.
NJF: Oh. I like their singing, but that's your opinion.
Jonas Fangirl: OMGGG THEY R SOOO GREAT U R JUST JELOUS CUZ I BET U CANT SINGG ND THEY R PERFCT SOOOOOOOOOOO HAWTTT AND LYKE THEY HAV PURTY RINGS SO THEY R BETTER THEN U.U DONT NO GUD MUSIC SO F*** OFF YOU GAY F**!!!!!1!!11ONE!
by AlexaJ September 01, 2008

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt