Prognathic chimp mail

I think there may be a bit of a misunderstanding here!

"Prognathic" refers to a condition where the jaw or face is protruding or projecting forward, often used to describe a characteristic of certain animal species, including primates.

"Chimp" is short for chimpanzee, a type of primate.

And "mail" is not a word that makes sense in this context. I'm assuming you meant to ask about something else?

If you meant to ask about something else, please feel free to rephrase your question, and I'll do my best to help!