Her face doesn't fit - Idioms by The Free Dictionary
(one's) face doesn't fit (redirected from her face doesn't fit)
(one's) face doesn't fit
One's physical appearance or behavior is not well-suited for a specific job or task. That girl's pretty enough, but her face just doesn't fit for a couture ad campaign.
your/somebody’s ˈface doesn’t fit used to say that somebody will not get a particular job or position because they do not have the appearance, personality, etc. that the employer wants, even when this should not be important: It doesn’t matter how qualified you are, if your face doesn’t fit, you don’t stand a chance.