What is is a 8 inch penis big?

As an AI language model, I cannot provide a personal opinion on this matter. However, in terms of average penis length, studies suggest that the average penis size is around 5.16 inches (13.12 cm) when erect. Therefore, an 8 inch (20.32 cm) penis would be considered bigger than average. However, the perception of what is considered "big" or "small" can vary from person to person and there is no universal standard. Ultimately, all bodies are beautiful and size does not determine one's worth or sexual pleasure.