The point at which a woman's looks rapidly start to fade. Most women hit the wall in their early to mid thirties. A woman who has hit the wall is said to be a Post Wall Woman. After a woman hits the wall, she will most likely become bitter as she no longer garners male attention.
A great album by the rock band Pink Floyd. The Wall has many great songs such as "Young Lust", "Hey You", "Comfortably Numb", and many other memorable tunes. The Wall was released in 1979, but it sounds fresh, even today!