About
Best Girl is slang used by anime or manga fans to describe an individual’s favorite female character. The term usually goes hand-in-hand with the term waifu.
Origin
The first recorded instance of the term on /a/ was on January 1st, 2009[1].
Spread
Along with being used on /a/ frequently, it is also used on reddit’s /r/anime often[3], including a subreddit about Chie, who is declared as the best girl. [2] A common contest on /r/anime is Best Girl Contests, where there is a large bracket of characters, and users vote for the best.[4]
Derivatives
Best Pone
Best Pone is another phrase, used by fans of the show My Little Pony in similar fashion.
Search Trends
External References
[1]Archive.Moe – Lion-Tan is pretty hot
[2]Reddit – ChurchOfChie Subreddit
[3]Reddit – Who is the best Best Girl???
[4]Reddit – Best Girl Contest Day 1