Do you have certain words you always seem to misspell, or mistype? I do, and one of those words is “definitely”.
It would seem someone else has that same problem. Either that or they are annoyed by seeing the word misspelled.
Either way, they created a website containing just a single page containing information now to spell “definitely” and how NOT to spell it.
The domain name is even cool: http://www.d-e-f-i-n-i-t-e-l-y.com/