What does ABC for a girl mean in Roblox?

I'm curious, what exactly does the term "ABC for a girl" mean in the context of Roblox, a popular online gaming platform? Could it be referring to a specific game mechanic, an acronym for a popular group or community within the game, or perhaps a slang term that's unique to the Roblox community? Understanding the nuances and jargon of online gaming communities can be challenging, so any clarification you can provide would be greatly appreciated.