WHAT IS HRB
There is no exact abbreviation for it, never was one.
I have given it different meanings through the years, depending on my mood.
It started off as a full word, the meaning of which is a collection of preserved plant specimen. Then it was just scattered letters from another, totally different one. There is an expression that suits it well, because of my self-sabotaging personality.
Truth is, I rarely think about what it means.