rabbit starvation
FYI: For those that have never heard of the term:
Protein poisoning (also referred to colloquially as rabbit starvation, mal de caribou, or fat starvation) is an acute form of malnutrition caused by a diet deficient in fat and carbohydrates, where almost all bioavailable calories come from the protein in lean meat
I think they meant that as a joke. Obviously, even if someone had extraordinarily large breasts, they could just peek over them or move them to side.