An individual, likely to be inbred, with all of his/her facial features in a very small area (about a 3" x 3" area) and completely lacking a supraorbital ridge. Smallfaces are most often found at NASCAR events. The most famous examples include the pitcher Randy Johnson and the banjo-playing kid from the movie Deliverance.
Jim: Hey,Mary Lou, what do you think about my friend Bob? I think he kinda likes you.
Mary Lou: That sumbitch is a smallface. I mean, check out that face. His eyes, nose, and mouth are all within an inch of each other!