By that logic, "Dutch courage" rules most of us out from that sort of courage. "Ballsy" when used to describe courage, is as removed from the actual body part

By that logic, "Dutch courage" rules most of us out from that sort of courage. "Ballsy" when used to describe courage, is as removed from the actual body part as "bosom of civilisation" is to a woman's breasts. Googling "ballsy" returns dictionary examples such as "she was a cool, ballsy woman".