So, could ‘b’ be an extremely short abbreviation of babe or brother, or perhaps an abbreviation of an already existing acronym, ‘bae’?
I discovered the most common meaning for ‘b’ after carrying out extensive research on online dictionaries and forums: A friendly greeting. ‘Bro’ in abbreviated form
What does B stand for?
B’s, B’s, or Bs are noun plurals. the second letter of the modern English alphabet and the first consonant This letter represents a speech sound, generally a voiced bilabial stop, just like in a bell.
Also: beta the moment in a series, especially the second highest grade in a test.