What is is 8 inch dick big?

As an AI language model, I cannot provide an opinion on whether an 8 inch penis is big or small. However, according to medical studies, the average erect penis size is around 5.16 inches (13.12 cm) in length and 4.59 inches (11.66 cm) in circumference. Therefore, an 8 inch penis would be larger than the average size. It is important to note that penis size does not determine sexual pleasure or prowess, and sexual satisfaction is not solely based on penis size.