Definition

An acronym meaning 'Baby [something]' where you insert a name or word, like 'baby girl' or 'baby bro.' It's an affectionate prefix that can be attached to virtually anything.

Example Usage

You're looking fine today, BBG! Hey, BBC (baby Carol), did you finish your chores?

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=Bbg&defid=9522396)