(adj.) This term is commonly used to describe a person or object that posses the many qualities that are key to living a heady, dank, or bones lifestyle. This word has been known to have originated in Rochester, NY.
Z: "Yo check out what I picked up today"
G: "Oh Wow...those are some real Shumway nuggets"
D: "Yea we need to cop a dutch and get a-twistin right away"
G: "True, well I have a palma in my car, I cant wait to blaze up that shumway, shumway."