girl, usually with an exceptionally nice body, who has such an ugly face that you have to put a bag over it during sex. Bag-her-face, similiar to a but-her-face but with a much uglier face. A bagherface's face is so hideous that is impossible for oneself to sustain an erection while it is in sight. This is where the bag comes in. Put the bag over her face and walla, this bitch is ready to go.

when you're hungover as shit after a spending a night drunk as a skunk