I can't believe it's not but-her face.
When a person has a killer hot body but person's face isn't even good enough to be a butter face.
Ed: She's got a serious body on her but she's got the worst case of but-her face I've ever seen
Dave: Dude, she's got an I can't believe it's not but-her face.
Dave: Dude, she's got an I can't believe it's not but-her face.