A message that appears when you search UrbanDictionary for something that is non-existent/undefined. Occasionally after reading this message follows a sense of disappointment.
"Isn't defined yet" isn't defined yet. I guess I'll write up a definition.
Another mispelling of definitely almost as popular as the really dumb mispelling definately. definetly is also stunningly common, more than definitly. Hard to believe, even definatly is used quite often.
When I wrote definetely I was definitely thinking of #define and thus I must be a computer geek.