gayassatsushi

gayassatsushi is a TikTok account created on an unknown date. Before their current username, they had "gayasschuuya". Their content is mostly dedicated to the animated series called "Bungo Stray Dogs". They have been attacked in the past for disliking the character Chuuya Nakahara, though that might not seem relevant it certainly is.

Recently they have created a "username group" where everyone that wants to join in changes their TikTok username to "gayass_", the blank usually filled with a Bungo Stray Dogs character, but not necessarily.

The username group is currently titled 'gayassbsd'. Two of the first people to join were "gayasslucy" and "gayassryunosuke". It originally wasn't intended to start a username group, but after more people changed their username, it went viral and a lot more users came rushing in.
There is a current Discord server dedicated to the people who have those usernames, founded by @gayassfukuchi on TikTok.

They have gotten a wiki page wrote about them, and certainly, there's more to come.

originally known as gayasschuuya is a tiktok user who got threatened by chronically online people for disliking chuuya nakahara. Later on they got a whole fandom of people naming themselves gayassbsd characters name after them.