Chick with a hell of a nice body, but the face is ugly.

A girl with an exceptionally hot body but an exceptionally ugly face. Everything but-her-face is attractive.

Butterface, oh Butterface
I wish you would die
It’s really fucked up
To get my hopes up so high
With fucked up face – and bloodshot eyes
Hold the bag steady
So your face can’t scare the guys
Your body is banging, but your face makes me shout
Your front teeth are screaming “Let me the fuck out”
With Hair like brittle and breath like acid
You look like something
That crawled out of Lake Placid
That’s it for now
I have nothing else to say
Keep that face covered
It’s probably what killed Ray

As in everything about a chick looks good, "but her face."

when a girl has a good body but an ugly face (as in 'but her face')

1.Female of human species with a rather attractive body but an ugly or hideous face. Comes from phrase "Everything's good but-her-face". See also bag job. 2.Person with oily, pimply skin on face.

A woman with a hot body and a fugly face. From the neck down, she's got it goin' on. But her face... That's another story.