Dentopedology
"Dentopedology is the science of opening your mouth and putting your foot in it. I've been practising it for years."
Attributed to Prince Philip
I don't know if this is truly a word, but it should be. I have suffered from the affliction of foot-in-mouth disease for most of my adulthood. I thought of it privately as my own cogno-linguinistic dysplasia but I think the Prince Philip word has a bit more panache. I also think that since a British Royal said it, that should make it an official part of the lexicon.
If it became an official word, then it could be a truly recognized affliction.
We could form a new branch of speech therapy - Dentopedologists or cogno-linguinists.
We could possibly even have some brilliant inventor create a braking appliance for our tongue.
I can see it now..............
;-)