What is free hand sculpting?

I saw an old forum recently where the creator said they were adding free hand sculpting.

the creator said they were planning on adding free hand sculpting at some time but i dont know exactly what it is.

The reason i asked is it something that could be used to make base meshes. Even though i dont know exactly what it is i thought it might be where your drawing in mesh similar to the tube tool but you can add and extract mesh and create more complex 3d shapes.

am i wrong?