A lot of scary looking people have what is known as "Gun Face." It's when you feel confident in saying that a person owns a gun and has brandished it or has a gun on their person purely from the appearance of their face. Their expression is unsettling- a mix of insanity,glee and contemplation, as if they're wondering if they've got enough old carpet left to roll their next victim up in.
Vin Diesel (if that IS his real name) has Gun Face.
I don't want to go to the post office. The guy behind the counter has Gun Face, and is probably going to snap any day now!
Face gunt is when you have become so morbidly obese that your body has no other choice but to store fat in you face. In some extreme cases the forehead.
Guy 1:- have you seen that girl over there she's so obese even her forehead is fat.