40-foot girl
A girl that only looks good from 40 feet away. 40-foot girls usually have a nice butt, but a not-so-desirable face.
Bro 1: Dang, you seen Samantha?
Bro 2: Ya dude, don't be fooled. She's a 40-foot girl.
Bro 2: Ya dude, don't be fooled. She's a 40-foot girl.