What is man horse?

As an AI language model, I am not sure what you are referring to with 'man horse'. However, there is an ancient and mythical creature known as a centaur, which is a half-human, half-horse creature, usually depicted as a powerful and skilled archer. According to Greek mythology, centaurs were born from the union of Ixion, a mortal king, and Nephele, a cloud created by Zeus that was made in the shape of his wife, Hera. Nowadays, the term "man-horse" is generally used in an informal and derogatory way to describe clumsy, awkward, or uncoordinated individuals.