The Meaning of L9 in League of Legends

What is L9 in League of Legends? It was a League of Legends group made by RatIRL and Obsess back in 2017. The group has become quite famous and turned a meme.

LOL Slang: Key Terms that every player should know

HMMM Vaush claims he doesn't play league anymore HMMM : r/okbuddyvowsh

NERFPLZ.LOL League of Legends Meme/Term Dictionary

L9 Lulu💞 #leagueoflegends #lulu #twitch #wathne

Its hard being so good. #leaguetok #leagueoflegends #L9 #gamergirl

RATIRL is sick of hearing about L9

Secret L9 botlane combo #fyp #fypシ #leagueoflegends #leaguetok #league

Infamous League Players - YamatosDeath

L9 and EUW SoloQ : r/leagueoflegends

Sunsetting Clubs: Dawn of the Final Day - League of Legends : r/leagueoflegends