Yes, thanks. :-) But I recall at the time looking at multiple definitions in Urban Dictionary, and definitions elsewhere, and they varied significantly.

It seems to be one of those terms that depends significantly on the specific context within / to which it is applied. Yet people will just say "baller" -- like my acquaintance -- and leave you to fill in the background. In other words, you have to be in the know, to know what they are really saying.

Which, IIRC, per some of the definitions I encountered, is actually part of its definition. :-/