I guess it means: "You write code, but you're not one of those nerds"
Also see: http://www.urbandictionary.com/define.php?term=bro (definition #1) for what the "bro" part stands for. It's not technically "brother".
When I was in college the term was a little more harsh: "douche" http://peoplewtf.com/wp-content/uploads/2010/10/DOUCHE-4.jpg
It seems they have better PR now.
I guess it means: "You write code, but you're not one of those nerds"
Also see: http://www.urbandictionary.com/define.php?term=bro (definition #1) for what the "bro" part stands for. It's not technically "brother".
When I was in college the term was a little more harsh: "douche" http://peoplewtf.com/wp-content/uploads/2010/10/DOUCHE-4.jpg
It seems they have better PR now.