Every state has at least one or two slang words unique to just it. Colorado is no different, but of course most of ours are either weed or skiing related.
An infographic from PlayNJ.com shows the most unique slang word to each state in America.
Colorado's is "gaper," which is a derogatory term for a novice skier... Don't worry I had never heard of it either.
Wyoming's also has to do with us in Colorado... A "Greenie" is also a derogatory term, but there's is for a person from Colorado, thanks to our green licence plates.