Y2K has a couple of meanings in Roblox. Players could be referring to the hacker known as AdminY2K or the Y2K clothing and accessories found in the avatar shop.

Robloxians have portrayed themselves via distinctive usernames on the metaverse for several decades. ... 200 Roblox usernames that every Robloxian should know about in 2023. By Mari "Mak" Kumaran.