Whuffo is shorthand that stands for ‘what for’. When you apply that word to an individual in the context of skydiving the definition of a whuffo becomes…
A person who is not a skydiver.
My definition of a whuffo is…
People who condemn, and don’t understand anyone who wants to enjoy a range of diverse experiences.
The term whuffo has been applied to non-jumpers because they are always asking, “What for would you want to jump out of that plane?” I am often told I am crazy because of my hobbies. I like to scuba dive (with sharks), and jump out of planes. Some people cannot fathom doing such activities especially leaping from a perfectly good airplane. However, I beg to differ on the perfectly good terminology to describe the planes skydivers leap from.