A face that a slightly attractive or friendly looking person (whom you don't know) makes that makes you think twice about them, your opinion depends on the crazy face.
But a crazy face is simply a face that someone makes the makes that person look crazy or questionable.
you can also make this face at people to scare them away from you or just confuse them.
Gatrey- i was talking to this kid at school...
Jen- yeah? and...?
Gatrey- well he made this face and I couldn't think of him as hot anymore... just.. the face!
Jen- GURL! you got crazy face-d