What stands for o b c in roblox?

In Roblox, "OBC" stands for "Outrageous Builder's Club," which was a premium membership tier that provided users with various benefits, such as a daily Robux stipend, the ability to create and sell game passes, and access to special features. OBC was part of Roblox's Builder's Club membership options, which also included Classic and Turbo tiers. However, Builder's Club has since been replaced by a new subscription model called Roblox Premium.