When a woman's face is severely sunken in from being underweight or too skinny, usually caused by anorexia or bulimia
"Someone throw that girl a candy bar, she has hungry face!"
"She sure lost a lot of weight" "she suffers from hungry face"
a face made by amature dancers when trying to look impressive but really come off as being a stupid slut or horny.
Sally wanted to make up for the fact that she couldn't point her feet so she decided to "dazzle" the audience with her hungry jazz face.