What is the anatomical permanent status for "butt chin"?

What is the anatomical permanent status for "butt chin"?
A cleft chin.
CLEFT
*cough* Well, there is no extremely experimental sounding name, but it is call a "cleft chin", and is, in reality, a hereditary trait.
I don't know but I wouldn't stick out my tongue at the point of answering!
cleft chin
Chin disambiguation or Cleft Chin.
OK it be only a concern of time before someone posted a give somebody the third degree like that. I reflect you should ask a doctor it would give them a obedient laugh. :D

lenders

Fish