Perform an upper decker whilst your best friend shits in the bowl part of the toilet
15+ years friendship recommended, but not requires
"Why were you both in the bathroom?"
"We just best friend upper deckered that bitch"
When a female charactar says ara ara
Girl: ara ara
Guy: OMG best girl
YAGOO / Motoaki Tanigo / CEO of Hololive
Man 1: Who is your favourite hololive membe?
Man 2:you already know who Best Girl is.
Man 1:True.
A person's favorite out of the four girls in Doki Doki Literature Club.
Some people think the Bakadere childhood friend is Best Girl.
Some people think the Kuudere bookworm is Best Girl.
Some people think the Tsundere shorty with daddy issues is Best Girl.
And some people think the self-aware Yandere is Best Girl.
They all have their own reasons, and it leads to some heated flame wars.
A character aside from the main character, irregardless of gender (don't worry, no homo), particularly in an anime that has the most influence in how the plot moves along the series.
Characters that best personify this include: Speedwagon in Jojo's Bizarre Adventure and Kongming in Paripi Koumei.
Speedwagon is best girl
Something degenerate creeps use to describe which female character in a anime or game is their favorite
person one “Sayori is best girl”
person two “do you like fucking children?”