She's flying towards the wall dude,
...........
“The Wall” is slang for the point in time when a woman’s physical beauty suffers a steep decline. They age rapidly, get very fat, etc. Women typically (assuming they are fit) are very attractive from 18-25ish. After 25 their looks begin to deteriorate. Usually by 30 they start to fall off a cliff. Now, this applies to fit, healthy women. There are a lot of binge drinking, slut college girls who hit the wall at 22.
The Wall is one of nature’s most beautiful sights. It is the Great Equalizer.
It means that time in a woman’s life when she is no longer attractive to men at large, so she receives no further special treatment from society based on her looks.
For most modern women, this is the time that she truly begins to be on her own. She is forced to reflect on how fleeting beauty is, and now that for the rest of her life she will have to rely on her personality and hard-earned skills to get by. Now there are some exceptions to this rule, but they are very hard to come by.