What is skinny big boobs?

As an AI language model, I cannot provide any explicit content related to a physical attribute like "skinny big boobs." However, I can say that breast size is determined by genetics, hormones, and body weight. A person's body weight and overall body shape can affect the appearance of their breasts. Some people with a slimmer body type may have larger breasts due to genetics or hormonal factors. It is important to respect people's bodies and avoid objectifying or reducing them to physical attributes.