Best girl syndrome is when someone feverishly believes that their favourite character in fiction (typically a female in anime, hence the name) is the best character and will be stubborn in saying that theirs is the best and everyone should like it, and that if they don't they simply say that they know them better and say that the other person is in denial, not considering the fact that other people have different opinions.
Guy 1: god I love insert anime waifu here
Guy 2: nah is insert different anime waifu is better.
Guy 1: fair enough, I just like mine better.
Guy 2: you don't seem to get it, they are better.
Guy 1: ...to you maybe, but I still prefer anime waifu1.
Guy 2: you just aren't giving them a chance! Stop being stubborn about it!
Guy 1: and you have Best Girl Syndrome
Guy 2: nah is insert different anime waifu is better.
Guy 1: fair enough, I just like mine better.
Guy 2: you don't seem to get it, they are better.
Guy 1: ...to you maybe, but I still prefer anime waifu1.
Guy 2: you just aren't giving them a chance! Stop being stubborn about it!
Guy 1: and you have Best Girl Syndrome
by Undert23 November 8, 2019
 Get the Best Girl Syndromemug.
Get the Best Girl Syndromemug. by Yeahyeahsingingchallengeletsgo January 10, 2022
 Get the The girl summermug.
Get the The girl summermug. by hARrINig yOUrmOuF November 8, 2017
 Get the i see a peng girl then i posemug.
Get the i see a peng girl then i posemug. by Selvanio patricks November 5, 2020
 Get the National give a girl your hoodie daymug.
Get the National give a girl your hoodie daymug. by OnlyTrueStatements June 12, 2023
 Get the Girlmug.
Get the Girlmug. a pre loved clothing hunter typically fueled by coffee, tea, or dirty sodas, she will most likely go thrifting even though she is supposed to be getting an oil change for her car, she can spot a thrift store from a mile away, her outfits may or may not make sense but doesn't shy away from expressing her individuality, in other words a thriftheads girl is a raging thrifting badass.
by Jesse Jo  February 4, 2025
 Get the Thriftheads girlmug.
Get the Thriftheads girlmug. Sone of the snottiest, annoying, yet cute girls in middle school. They walk around in short-shorts waving their fat asses around to make nerdy kids wanna fuck them. There are some annoying little fucks out there, but popular girls cannot be out-slutted. They are basically the definition sex, drunkenness, getting high, and smoking before the age of 18. Popular boys are way more worse, but that's a story for another day.
*popular girls conversation in middle school*
Brittney: Oh mi gawsh guyz guess wuut.
Faith: omigawd quit is it gal?
Brittney: I just saw Jimmy's instagram and it is gay asf!!!but he's so cute! Imma text him!
*Jimmy hears conversation, and does right choice to ignore them*
Jessica: ohmigawd he just looked at us!
*all 3 girls start squealing annoyingly*
Brittney: Oh mi gawsh guyz guess wuut.
Faith: omigawd quit is it gal?
Brittney: I just saw Jimmy's instagram and it is gay asf!!!but he's so cute! Imma text him!
*Jimmy hears conversation, and does right choice to ignore them*
Jessica: ohmigawd he just looked at us!
*all 3 girls start squealing annoyingly*
by tbone42 April 14, 2019
 Get the Popular Girlsmug.
Get the Popular Girlsmug.