A person whose marijuanastash consists totally of THC infused edible gummies of various strengths and flavors. A gumhead does not smoke weed, inhale vapors, or use sublingual cannabis oils.
I saw an old High School gumhead friend the other day. He still carries gummies in his vest pocket!
A Gumhead means a person with a scar on their head. Usually the forehead.
It is refered to as 'Gum' head due to the scar tissue looking it like a gum.
Also known as a DFontanahead