An exclamation of frustration common among League of Legends and growing in popularity with other MOBA game communities. Frequently, it is used when one is unable to find a team to join.
First coined in 2016 by a player searching for and unable to find a team that uses Discord to communicate.

Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)